A lethargic dog should stop devoted dog owners in their tracks—lethargy in dogs is often one of the earliest clues that something isn’t quite right. Integrative veterinarian Dr. Julie Buzby explains how to recognize a lethargic dog and shares 19 medical reasons why your dog may be lethargic. Then she explains when you should take a lethargic dog to the vet.
From a wagging tail to pleading eyes, your healthy dog is skilled at telling you how he or she feels without using a single word. But did you know your dog is also communicating with you when he or she is acting lethargic?
It turns out that sluggishness, listlessness, and loss of energy are your dog’s ways of telling you that he or she may need a trip to your vet—not just a nap. Let’s take a closer look at lethargy in dogs and what it could mean for your precious pup.
- What is lethargy in dogs?
- How do you tell if your dog is lethargic or just tired?
- What are the symptoms of a lethargic dog?
- Why is your dog acting lethargic? 19 possible causes
- 1. Kidney disease
- 2. Liver disease
- 3. Pain
- 4. Anemia
- 5. Heart disease
- 6. Diabetes mellitus
- 7. Infectious diseases
- 8. Medications
- 9. Pneumonia or other respiratory infections
- 10. Cancer
- 11. Endocrine diseases
- 12. Toxins
- 13. Parasites
- 14. Dehydration
- 15. Neurologic disorders
- 16. Bites or stings
- 17. Trauma
- 18. Anxiety
- 19. Allergies
- When do you need to take a lethargic dog to the vet?
- If your dog is lethargic, call your vet
- How do you tell the difference between your dog having a sluggish day and something more concerning?
What is lethargy in dogs?
The term “lethargy in dogs” refers to a lack of energy, loss of interest in doing daily activities, or reluctance to get up and move about. Lethargic dogs may seem to suddenly lay around all day. They may not want to play, or they might generally seem a bit tired and depressed.
However, it is also possible for a dog to have a decreased activity level if he or she is just tuckered out from a busy day. So how do you know if what you are seeing is a sign of lethargy?
How do you tell if your dog is lethargic or just tired?
When trying to recognize lethargy in dogs, it can be helpful to think through the events of the past few days. Did your dog have a doggie play date with his or her friends? Did you take your normally sedentary pup on a long run or walk?
In these situations, your dog might understandably be more tired than normal. But typically even a tired dog will still get excited about a favorite treat or the doorbell ringing. And after about 24 hours, your dog should be back to his or her normal self.
On the other hand, if you can’t think of anything that might have worn your dog out, or he or she doesn’t quickly bounce back after some rest and relaxation, your dog might be lethargic.
What are the symptoms of a lethargic dog?
In order to determine if your dog is tired or lethargic, it can also be helpful to know the symptoms of lethargy in dogs. Since lethargy in dogs is a general lack of energy or a feeling of sluggishness, you may notice:
- Your senior dog hesitates to go for his or her usual walk.
- He or she stays in one place for a prolonged time.
- Your dog ignores his or her favorite toys and has no desire to play.
- When you call him or her, your dog fails to come.
- Your dog sleeps more than usual.
- Your dog may stand up and move around but quickly wants to go lay back down again.
- The things that normally excite your dog (e.g. visitors, favorite treats, etc.) get a lackluster response.
- Your dog wears out faster than normal from activity.
Is your dog showing other symptoms?
In addition to watching for these signs of lethargy, it can be helpful to pay attention to any other signs that something might be wrong. Sometimes all you notice is that your dog seems low on energy. But often, a lethargic dog will have other symptoms. For example, you might notice:
- Your dog is lethargic and wobbly
- Your dog is lethargic and not eating (however, it’s also possible for your dog to be lethargic but eating and drinking)
- Your dog is lethargic and shaking
- Your dog is vomiting and lethargic
- Your dog is drooling and lethargic
- Your dog is lethargic and drinking a lot of water
- Your dog is lethargic and breathing hard or lethargic and panting
- Your dog has pale gums and lethargy
- Your dog has diarrhea and lethargy
Especially if your dog becomes suddenly lethargic for no obvious reason and/or is showing some of the symptoms above, you should call your vet. (We’ll talk more about how to decide if you need the regular vet or vet ER in a bit). Lethargy is a common symptom of many different medical conditions, so it is nothing to be ignored.
Why is your dog acting lethargic? 19 possible causes
When thinking through the causes of lethargy in dogs (and there are a lot!), the following 19 medical problems come to mind as being some of the top contenders. However, be aware that this is far from an exhaustive list.
1. Kidney disease
In kidney failure in dogs the kidneys are functioning poorly and cannot excrete as many toxins and waste products as they normally would. When these compounds build up in your dog’s bloodstream, he or she often begins to feel sick and lethargic. And your dog may experience other signs like weight loss, vomiting, diarrhea, and loss of appetite. These signs may become especially prominent as he or she progresses through the stages of kidney disease in dogs.
2. Liver disease
When a dog’s liver is damaged, it can’t do its jobs as well, including storing energy for later use. This can lead to lethargy. Plus, dogs with liver disease may experience vomiting, diarrhea, and a lack of appetite. So they can be lethargic simply because they don’t feel good.
Liver disease in dogs can be caused by infection, chronic inflammation, toxin ingestion, congenital diseases, and tumors. To diagnose liver disease, your vet will use blood tests for dogs to look for high liver enzymes in dogs such as high ALP in dogs.
3. Pain
A reluctance to participate in normal activities or sleeping more than normal can be a sign your dog is in pain. And so can withdrawing from the family, being more irritable, altering the posture or gait, or eating less than normal.
Since pain is one of the common causes of lethargy, let’s take a look at some of the potential sources of pain:
Orthopedic problems such as arthritis
Osteoarthritis in dogs, a torn ACL in dogs, hip dysplasia in dogs, or other orthopedic conditions can all cause joint pain and poor mobility. As a result, your dog may prefer to lay in one place, not want to take walks, struggle to get up and down, or avoid stairs or jumping.
The good news is that there are many options for natural pain relief in dogs, as well as a variety of pain medications (e.g. carprofen for dogs or gabapentin for dogs) to relieve arthritis pain in dogs (or manage other causes of joint pain). And you can take steps to help your senior dog with arthritis at home and comfort a dog who is in pain.
Eye problems
Some eye conditions such as glaucoma in dogs, uveitis in dogs, or corneal ulcers in dogs, may cause significant ocular pain. This pain, especially when it persists for a long time, like in glaucoma, can cause a dog to be lethargic.
Dental disease
Sometimes dogs with dental disease in dogs or a dog tooth abscess may be lethargic because their mouth hurts. Thankfully, a dog tooth extraction and dental cleaning often help them feel better in no time.
Pain from internal organs
Pancreatitis in dogs (i.e. inflammation of the pancreas) can cause severe abdominal pain as well as vomiting, diarrhea, and lethargy. And so can other conditions like a gall bladder mucocele in dogs.
4. Anemia
Anemia in dogs (i.e. a low red blood cell count) can lead to lethargy. This is the case because red blood cells carry oxygen to the rest of the body. So when a dog has fewer red blood cells, his or her body may not be getting the oxygen it needs to function optimally.
The causes of anemia in dogs are numerous. But some of the most common include:
- Blood loss (due to parasites, trauma, GI bleeding, or cancer such as hemangiosarcoma in dogs)
- Kidney disease or other chronic conditions
- Immune mediated hemolytic anemia (IMHA in dogs) and immune-mediated thrombocytopenia (ITP in dogs)
- Toxins
- Bone marrow diseases or cancer
5. Heart disease
When a dog develops heart problems like heartworm disease in dogs, dilated cardiomyopathy in dogs, mitral valve disease in dogs, or congestive heart failure, the heart cannot pump blood through the body as effectively as it should. This results in lower levels of oxygen throughout the body and backup of blood in the vessels.
Over time, heart disease in dogs may cause signs such as weakness, coughing, exercise intolerance, lethargy, collapse, and difficulty breathing.
6. Diabetes mellitus
In diabetes in dogs, the glucose (i.e. sugar) molecules can’t get into the cells to be used for energy due to a lack of insulin (i.e. the hormone that lets glucose into cells). This lack of cellular energy and the high blood sugar levels lead to lethargy, increased thirst in dogs, increased urination, a dog who is losing weight but eating well, and other symptoms.
In severe cases, diabetic dogs can go into diabetic ketoacidosis (i.e. DKA in dogs) which can be life-threatening. Dogs with DKA tend to have more severe signs such as vomiting, diarrhea, collapse, or weakness in addition to the typical signs of diabetes.
7. Infectious diseases
Often when a dog has an infectious disease like leptospirosis, distemper in dogs, or parvovirus, he or she may be lethargic. Additionally, depending on the disease, you may notice signs such as fever, vomiting, diarrhea, weakness, nasal discharge, coughing, dehydration, etc.
8. Medications
Sometimes lethargy can be a side effect of certain medications. This is especially common with medications used to manage seizures in dogs, decrease anxiety, or control pain. For example, one of the most common gabapentin side effects in dogs is severe lethargy that usually decreases after a few days on the medication.
9. Pneumonia or other respiratory infections
Kennel cough and canine influenza are two of the most common causes of respiratory infections in dogs. Both are highly contagious but typically remain mild. However, they can occasionally lead to pneumonia in dogs, which tends to make dogs much sicker and more lethargic. Plus, a variety of other bacteria, viruses, and fungi, as well as aspiration of food, water, or vomit, can cause pneumonia.
In general, lethargy plus coughing and sneezing, nasal discharge, and/or your dog breathing fast could be signs your dog has a respiratory infection.
10. Cancer
A variety of different cancers (e.g. liver cancer in dogs, osteosarcoma in dogs, prostate cancer in dogs, bladder cancer in dogs, lymphoma in dogs, etc.) can affect dogs. As a result of the toll cancer takes on their bodies, dogs with cancer won’t have as much energy as they used to. And they tend to sleep more.
11. Endocrine diseases
The endocrine system produces and secretes hormones through the body to control various processes. When there are too few or too many hormones being secreted, it can lead to diseases like:
- Hypothyroidism in dogs (i.e. low thyroid hormone levels)—May lead to weight gain, lethargy, and a poor hair coat
- Cushing’s disease in dogs (i.e. high levels of the steroid hormone cortisol)—Symptoms include increased thirst, urination, and appetite plus changes in hair coat, a pot bellied dog appearance, and lethargy.
- Addison’s disease in dogs. (i.e. a deficiency in cortisol and/or mineralocorticoids)—May cause vague signs like lethargy, weakness, collapse, vomiting, or diarrhea.
12. Toxins
Ingesting toxins (e.g. your dog eats a grape or raisin or your dog gets into Advil) can sometimes cause lethargy. Plus, you may see other symptoms such as vomiting, diarrhea, weakness, collapse, tremors, seizures, etc.
Important note: Time is of the essence when it comes to toxins. So if you ever think your dog may have gotten into something toxic, please call your vet, ASPCA Animal Poison Control Center, or Pet Poison Helpline immediately. (There is a fee associated with calling both pet toxicology services but it is well worth it.)
13. Parasites
Some internal and external parasites (e.g. hook worms, fleas, and ticks), feed on your dog’s blood. This can cause lethargy due to anemia. Plus, dogs (especially puppies) who have a heavy burden of roundworms could potentially be lethargic because the parasites are stealing so many nutrients from the GI tract.
14. Dehydration
If a dog becomes dehydrated from profuse vomiting and/or diarrhea, fever, significantly decreased water intake, or an underlying medical condition (e.g. diabetes, kidney disease, etc.), he or she may be lethargic.
15. Neurologic disorders
Lethargy, decreased response to stimuli, or depressed mentation can also occur with some neurologic disorders. For example, if a dog is in the post-ictal phase (i.e. time directly after a seizure), he or she may be confused, disoriented, or more tired than normal. These changes may clue you into a seizure even if you didn’t see it happen.
16. Bites or stings
A snake bite on a dog can cause a dog to become weak and collapse. Plus, you may notice a wound on your dog, difficulty breathing, excessive drooling, swelling, or other symptoms.
Additionally, dogs who are having a severe reaction to an insect bite or sting may also show similar signs.
17. Trauma
Trauma, such as occurs after a fall, dog fight, or being hit by a car, can cause lethargy in dogs. Some dogs have primarily external injuries (e.g. fractures, wounds, etc.). But other dogs may suffer significant internal injuries (e.g. air in the chest cavity, bruised lungs, internal bleeding, brain bleeding or swelling, etc.).
18. Anxiety
While it might sound counterintuitive, anxiety is another cause of lethargy in dogs. Dogs who are anxious may pace and engage in destructive behaviors. Plus, worried dogs might be panting and restless for a good part of the day. Heart beating rapidly, anxious dogs are in a permanent state of “fight or flight,” which expends a lot of energy.
This is especially true for dogs with separation anxiety because they experience these feelings all day long. Anxiety can wear dogs out and may explain why your dog seems tired once you’ve come home.
19. Allergies
Allergic dogs are constantly itchy, which can make them mildly lethargic. And they may suffer from secondary infections such as otitis in dogs (i.e. ear infections), pyoderma in dogs (i.e. bacterial skin infection), or dog paw yeast infection. These problems can make them feel even worse.
Thankfully, whether your dog is allergic to something in the environment, fleas, or dog food, there are a myriad of allergy medicines for dogs that can help give your dog some relief.
When do you need to take a lethargic dog to the vet?
It isn’t always a cause for alarm if your dog is a bit more tired than normal. But as you have learned, lethargy can be a sign of many different problems—some more serious than others.
If your dog is just mildly lethargic (perhaps slightly less interested in doing daily activities or a bit more subdued), you have more leeway to observe your dog. It is possible that he or she may perk up in a day or two. But if not, it is a good idea to make a vet appointment.
Signs your dog needs veterinary care
On the other hand, if you have noticed a significant change in your dog’s energy level and/or your dog is showing other symptoms, now is the time to seek veterinary attention. Some symptoms of concern include:
- Vomiting
- Diarrhea
- Change in water consumption
- Increased or decreased appetite
- Sudden weight loss or gain
- Limping or other signs of injury
- Coughing or sneezing
- Trouble breathing
- Seizures or disorientation
- Weakness or collapse
- Signs of pain
- Pale gums
This is far from an exhaustive list. So keep in mind that if you are worried about your dog, the best thing you can do is contact your vet.
Do you need to go to the ER or your regular vet?
If your dog is experiencing severe symptoms (e.g. profuse vomiting and diarrhea, seizures, collapse, extreme weakness, difficulty breathing, etc.), you may need to make an emergency vet visit. Otherwise, you are probably fine to make an appointment with your regular vet within a day or two.
Resources to help you make a decision
I know figuring out if you should take your dog to the vet can be stressful. So I want to remind you that you don’t have to sort this out alone. If you’re unsure whether you should head to the ER or to your regular vet, you can always call your vet for advice. The veterinary team would be happy to direct you to the place that is right for your dog. Plus, my article “How to tell if your dog sick” can also provide some helpful guidance.
If your dog is lethargic, call your vet
There are so many causes of lethargy in dogs (far more than we have time or space to talk about here). With that in mind, the best advice I can give you is that if you aren’t sure if your dog is lethargic or just tired, call your vet for advice. And if you know your dog is lethargic and you have concerns about his or her health, make an appointment with your vet or seek emergency veterinary care.
In the end, it is better to be proactive and get your dog checked out. If you are worried about your dog, make an appointment with your vet and share your observations. That way you can ensure you are doing all you can to keep your dog happy and healthy for as long as possible.
How do you tell the difference between your dog having a sluggish day and something more concerning?
Please share your experience in the comments below.
Amber says
My one year old dog is having bouts of lethargy, is unsteady, seems to have slower breathing, and whiny. it happens every day or so. He will be fine and then these symptoms start.
Julie Buzby DVM says
Hi Amber,
What you are describing sounds very concerning. I strongly recommend you have your vet evaluate your pup and see if a cause can be identified. Symptoms like these can turn into life threatening situations very quickly. Hoping for clear answers and a positive outcome for your sweet boy.
Treshia says
My dog hasn’t eaten but drinks water however he is feeling or lethargic. He hasn’t show any symptoms this moment other and not eating.
Julie Buzby DVM says
Hi Treshia,
I understand your concern for your pup and think it may be best to contact your vet. They can let you know if an exam is needed and help offer guidance. Best wishes and good luck!
Jane Dunne says
hi my 13 year old dog can only do a wee bit of poop some days and is dribbling constantly inside and outside he has been like this for a week could I take him to the out of hours pet hospital at night as he is also lethargic drinking plenty of water and eating well any advice would be helpful as I can’t afford private vet and my own vet can’t see him cause he hasn’t been registered in the last 3 years I am really concerned.
Julie Buzby DVM says
Dear Jane,
My heart goes out to you as you face this difficult situation with your senior dog. I understand how frustrating it can be when you want to do what is best but are limited by finances and circumstances. Without examining your pup myself, it is hard to offer specific advice and recommendations. I am concerned with what you describe and think your boy needs to be evaluated by a vet if possible. Hoping things have improved and all is well. Feel free to leave an update if you have a chance.
McKenna Fistler says
Hi! My 6 month old puppy is suddenly so exhausted and has been sleeping all day long. He has vomited twice (small and frothy consistency). He will drink water when I put it under his nose but will not eat. I am worried about him!
Julie Buzby DVM says
Hi McKenna,
I am so sorry your puppy is not feeling well. I agree this is great cause for concern. With young puppies, things tend to progress quickly and can become life threatening in a short amount of time. I would encourage you to reach out to your vet or an emergency clinic as soon as possible. This does not need to wait. Hoping you can get things turned around and praying for a positive outcome for your sweet boy.
Rebecca Miller says
14-year-old service animal was playing around this morning running and jumping and playing with me on my husband. now it’s in the afternoon and she is lethargic her gums are pale she’s breathing well her heart rates well she’s cool to touch has no fever her eyes are alert and follows me she still eats and is drinking water has a wet nose doesn’t seem to be in too much obvious pain just kind of sleepy and tired. I worry that something else is going on.
Julie Buzby DVM says
Hi Rebecca,
What you describe has me very concerned! Pale gums can be a sign of life-threatening issues. Please take your girl to the emergency clinic or call your vet right away. Hoping all is well. Praying for your sweet girl.
Murrieta Angelica says
My dog is about 5 years old Thursday early evening I gave him a bath is so scared of everything is sat still, but looks scared give him a little bit of whipped cream after his bath. He didn’t do much. It was hot that day too. It’s been hot for the last couple days in the morning, and I let him out of the cage and went straight for the water all day, Friday and Saturday he doesn’t wanna do much, don’t know what’s wrong
Julie Buzby DVM says
Hi Murrieta,
I am sorry your dog is exhibiting these worrisome behaviors and I understand why you are concerned. Unfortunately, without examining him myself, it is hard to make specific conclusions. The only way to try and get some answers would be to take him to your vet and have him evaluated. Hoping all is well and wishing you both nothing but the best.
Vandana says
my beegul dog is not eating properly from last 5-6 days. he only eat 2 -3 times from last 5-6 days. he commits 2 or 3 times. his passed bloody stool 1 time. he is sleeping almost time and not as active before.what to do
Julie Buzby DVM says
Hi Vandana,
I am sorry your pup is not doing well, and I understand why you are worried. This has me concerned too and I highly recommend you contact your vet right away. The best thing would be to have your boy examined and see if a diagnosis can be made. Hoping for clear answers and praying for a positive outcome. Wishing you all the best.
Tobi says
Hi, we have a 2 month old puppy Rhodesian ridgeback mix, he was vaccinated a day ago. He’s tummy was bloated and had worms in his poo. This morning, he is extremely weak not eating or drinking. Unable to go to a vet because pay day is next week. What can I do?
Julie Buzby DVM says
Hi Tobi,
I am sorry your puppy is not feeling well after his visit to the vet the day before. Without examining him myself, it is hard to make specific conclusions as to why he is acting this way. It is common for vaccines to make a puppy feel a bit lethargic the day of or even the day after as the body is working hard to get a response from the immune system. I understand you are limited financially but I still think it would be best to call your vet. They may be able to offer some medication without needed a recheck exam. Hoping all is well today and praying your pup is back to living his best life.
Will says
Hi Dr Buzby,
We’ve a 6 & 1/2 yr old Lab and he’s usually very energetic/very bouncy as Labs typically are. We went for a good field run/walk on Tues and on Weds he seems lethargic/not himself and avoiding putting to much strain on one side(avoiding jumping off sofa etc) today’s Thurs and he does seem ever so slightly improved as has been on a gentle walk although still slightly lethargic. Any thoughts would be greatly appreciated and do you think it’s ok to wait a few days to see of any improvement before a trip to the vet’s? He’s not overweight.
Kind regards
Will
Julie Buzby DVM says
Hi Will,
I am sorry your boy is exhibiting this strange behavior. Without examining him myself I can’t make specific conclusions and don’t know if this is cause for immediate concern. I like to err on the side of caution and think it would be best to go ahead and contact your vet. Hoping for quick answers and a clear path forward. Best wishes to you and your sweet boy.
debbie says
Hi Dr Buzby, one of my beautiful dogs (8 yrs old) went to sleep (via vet) last week. My other boy (red cattle cross boxer) is 11 yrs old and has suddenly become very lethargic’, off his food (usually a glutton), very subdued interaction (normally very happy, bouncy and licky), and I’ve noticed his R eye is turned upwards by more than half of his iris. There doesn’t seem to be excessive redness or watering. I will make an appointment for the vet but just wanted to get an idea of what we might be facing. My puppies were inseparable. Thanks Debbie
Julie Buzby DVM says
Dear Debbie,
I am sorry for the recent loss of your pup and understand why you are worried about these strange behaviors in your other dog. It is always good to rule out possible medical issues but, with what you describe, I am thinking your boy may just be grieving the loss of his housemate. Here is a link to an article with more information: Do Dogs Grieve? Helping Your Dog Cope With Loss
Without examining him myself, it is hard to make specific conclusions about the odd appearance of his eye. But I am suspicious that his 3rd eyelid may be raised and causing the eye to look different even though it might be completely normal. I am glad you are planning to have him evaluated by your vet. I think that is the best course of action and I always like to err on the side of caution. Hoping all is well and praying for favorable results. Feel free to update us on how your boy is doing if you have a chance.
Matt says
Hello. Since Saturday afternoon my 4 yo wire fox terrier has been lethargic and barely eats. Normally she is active and likes to play, but since then she barely moves. She occasionally drinks but other than that she has experience many of the symptoms that are featured on this page. She also vomited bile on Sunday morning. Monday evening I took her out for a walk and she seemed fine, but back at home she went back to lethargy. I took her to the vet yesterday and her heartbeat and temperature was normal. We are taking her back to the vet today for more tests.
Julie Buzby DVM says
Hi Matt,
I am sorry your pup is not feeling well. Hoping the testing today will reveal the answers needed to start the appropriate treatment. Wishing you the best of luck and praying for healing for your sweet girl.
Mariruth says
Our 7 month old GSD has vomited twice today. It looked as if it was only food. Now he won’t eat or drink and has just laid around all day. If he isn’t better by morning, we are planning a call to our vet. We are very concerned.
Julie Buzby DVM says
Hi Mariruth,
I am sorry your puppy is vomiting and not interested in his food. I agree this is very concerning and needs to be addressed right away. Hoping your vet can find the cause and start the appropriate treatment. Best wishes to you and you Shepherd pup.
denise says
Hello, my 5-month boxer pup girl for the past 7 days has been lethargic she sleeps all day, eats drinks, has diarrhoea, and stands still for long periods where she is stiff head down and her back is arched up, we have been to the vet 5 times all her blood tests are normal but we don’t know what is going on, any idea what this may be, I’m so worried, both vets don’t know what to tell me, one of them told me that it may be caused by the full moon which I research online and it comes up as true but I don’t believe is the case here,
Julie Buzby DVM says
Hi Denise,
I am so sorry your puppy is not doing well and having these strange symptoms. Without being able to personally examine your girl it is hard to make specific conclusions and recommendations. It does concern me that this has gone on for several days because a puppy’s health can decline rapidly without much warning. We really need to get answers quickly. It may be time to think about a referral to a specialist to pursue more in-depth testing. Medical causes are much more common than behavioral, so I would push for more diagnostics. Also, try to get this behavior on video if possible as this could be very helpful for your vet. I am wondering if what you describe could be seizure activity or some other neurological issue. The other thing that comes to mind is an arched back can be a sign of abdominal pain. Has your vet taken any x-rays to make sure your puppy doesn’t have a partial intestinal blockage or foreign body? Hoping you can find the answers you need to restore your sweet girl’s health and happiness. Praying for a positive outcome and wishing you all the best.
April Gray says
hi I’m writing in regards to my 5/12 year old shitzu . he is normally very energetic. but lately he doesn’t want to climb the stairs and not eating very well doesn’t want to drink water. his one eye seems to be watery alot. feels like he mite have a fever. what could this be
Julie Buzby DVM says
Dear April,
I am sorry your senior guy is experiencing these worrisome symptoms. Unfortunately, without examining him myself I can’t make specific conclusions or recommendations. It would be best for you to contact your vet and have him evaluated right away. What you describe could be signs of some very serious conditions. Hoping all is well and praying for healing for your pup.
Joanne Remppel says
My five-year-old Greyhound became extremely lethargic, and didn’t want to eat. After mush blood work and an ultrasound of her abdomen the results were she had a vitamin B12 deficiency., yet no one can tell me exactly why. When I got her from the race track, like many dogs at that time, she was riddled with hookworm, which took a lot of time to resolve. I would like to know if the long-term parasite problem could have scarred the intestinal wall, causing a mal-absorption of B12. She eats the same food as my other dog so it can’t be the food. Any thoughts?
Julie Buzby DVM says
Hi Joanne,
This is such a puzzling case! I understand why you are searching for answers and think your girl is very lucky to have you advocating for her health and well-being. Unfortunately, I don’t have any good answers and am at a loss as to what the cause could be. Parasites can cause this issue, but I would expect it to improve once the hookworm infection is resolved. A B12 deficiency can be congenital so it is possible your girl was born with it. My only recommendation would be to try adding a probiotic supplement to see if improving the overall gut health also improves B12 absorbency. If you have any further concerns or questions, it may be a good idea to ask about a consultation with a specialist. Hoping you can get some answers and praying for complete resolution. Best wishes and keep up the good work!
June says
My nine month old Australian shepherd suddenly became lethargic & sleepy tonight. Totally not herself. No other symptoms. Should I take her to an emergency vet?
Julie Buzby DVM says
Hi June,
I am sorry your puppy is experiencing these worrisome symptoms. Anytime there is a sudden change in behavior, especially in a young puppy, I would recommend you reach out to a vet right away. I am not sure if this is an emergency, but without examining her myself, there is no way to know. I like to err on the side of caution and encourage you to call your local ER and see if they want you to bring her into the clinic. Praying all is well.
Tammy says
My dog is very energetic and has a lot of anxiety. We went for a 20 minute walk yesterday and as soon as we got home she started shaking, tail between her legs and ears down. She has been drinking and not eating. I woke up today and she didn’t want to go for a walk, but finally got her to go outside. No walk through and she loves walks. Her poop was solid and she peed. She has been moaning a bit and just interested in sleeping. She is only 6. It is Sunday so I have to wait until Monday for the vet. Any thoughts?
Julie Buzby DVM says
Hi Tammy,
I understand your concern for your pup and think it is good you are reaching out for advice. Unfortunately, without examining her myself, there are just too many possible causes to make specific conclusions. I agree it is best to contact your vet as soon as possible. The symptoms you describe could be signs of something very serious. Hoping you were able to get answers and start treatment right away. Praying all is well and wishing your sweet girl all the best.
Crystal K says
Hello,
Last night my 11 year old terrier/chihuahua/poodle mix ate a small piece of fried fish that fell to the floor. I don’t believe there were any bones in it but I can’t say for certain.. A few hours later she started to act strange. I saw her just standing on all fours in the same spot for several minutes not moving at all. She wouldn’t even lay down. She was also shaking a bit. She did follow me around the house very slowly and then I started petting her to comfort her. She eventually laid down and seemed very listless. She is a very energetic dog and is always zooming around even though she is 11 yrs old. Today she won’t move from her sleeping spot and just wants to sleep.. She won’t eat or take in water. She hasn’t vomited or have diarrhea. Actually she hasnt gone to the bathroom at all. Is it possible the fish caused an upset stomach or perhaps there was a small bone in the fish and is lodged somewhere?
Julie Buzby DVM says
Hi Crystal,
I understand your concern for your little pup with how quickly these symptoms emerged. It is very possible that the fish caused some GI upset or even pancreatitis. Fish itself is very healthy but the oil it was fried in may be the culprit. It would be best to get your girl to the vet as soon as possible to make sure you get things under control before they escalate. Hoping all is well and she was able to make a full recovery. Feel free to leave an update and let us know how she is doing. Best wishes!
Benjamin Na says
My dog has been lethargic for the past few days. This started around Sunday afternoon where he was not as energetic as usual. This is odd because he is not even 3 years old and he is a Korean Jindo. He has barely eaten since then. He recently vomitted once today and the color was yellow. I’m scheduled to meet the vet tomorrow, but I’m worried as he is my first dog ever. He is usually playful and energetic. He also whines sometimes while he is laying down. He has also been eating grass whenever I take him outside for potty. He does urinate but he hasn’t pooped since Sunday.
Julie Buzby DVM says
Hi Benjamin,
I understand your concern for your pup, and I agree these symptoms are very worrisome. I am glad you had already planned to have him evaluated by your vet. Hoping you were able to get answers and there was a clear path forward with treatment. Praying all is well and wishing you both nothing but the best!
Laura Noonan says
Hello.
My 9 year old maltese shihtzu Sophie has all of a sudden become lethargic and looks dopey (her eyes move slowly and when she looks at any of us, she struggles to keep her eyes open).
She also sometimes shakes, mainly in her leg but she doesn’t have any walking issues or seeming like theres ang pain. No issues lifting her leg for a belly rub and she had a walk around the park (usually she is so energetic but today she did walk around but at a slower rate).
She wont eat any dinner or snacks, and only wants to drink water from our hands rather than the usual bowl. Her nose is dry and her skin does feel quite warm.
Its really out of the ordinary for her, as she is a dog with so much personality and even some attitude, so seeing her so low energy and lethargic is confronting.
It’s easter long weekend, so I’m not sure if we can get her in to see a vet at all and not sure how seriously to take it. Do you have any ideas on what this could be?
Thanks so much
Laura
Julie Buzby DVM says
Hi Laura,
I understand your concern for Sophie with the worrisome symptoms she is exhibiting. Without personally examining her it is hard to make specific conclusions or recommendations. From what you describe, this could be something very serious. I think it would be best to take her to the vet as soon as possible. If her condition continues to decline, it may be necessary to seek the services of an emergency clinic. Hoping she was able to make a full recovery and praying all is well.
Kristi says
Hello, about a month ago my 12-year-old pit bull got a bad skin infection from flea bites and was put on antibiotics. That completely cleared up, but within the past two weeks she has lost some weight and isn’t as interested in eating her dry dog food. I have tried a few things like putting some canned pumpkin in her food which helped. She has thrown up a meal here and there though. Now, she threw up her dinner last night and her breakfast this morning. Then after that she threw up some bile. It is Thursday and I cannot get her into the vet until Monday. She will get up and walk around but she is a lot slower and wobbly and lays down all the time. Do you think she will be okay until Monday? I am giving her stomach a rest and have some boiled chicken and rice that I am going to try and feed her tonight or tomorrow morning. Any advice helps. Thank you.
Julie Buzby DVM says
Dear Kristi,
I understand your concern for your senior pup with these worrisome symptoms. I agree this has me very concerned as well. I am not sure this is something that can wait till Monday. Of course, without examining her myself I can’t make specific conclusions. But what you describe could be signs of a life-threatening condition (such as an intestinal blockage or even internal bleeding which is usually from a ruptured mass on the spleen). I encourage you to get your girl evaluated by a vet as soon as possible. That may require an emergency visit, but I’d rather be safe than sorry and err on the side of caution. Hoping all is well and praying for a positive outcome for you and your pup.
Charles Bush says
My 9-year old Maltipoo is suddenly lethargic. She wants to sleep. She snaps if yo try to move her, etc. She rubs the side of her face on the door edge. I noticed swollen glands under her neck. For a couple of days she wants to be alone. When she was outside, she didn’t want to come in the house. Could this be cause by a dental problem. Her lethargy was better yesterday and worse last night. She started walking with her tail down.
Julie Buzby DVM says
Hi Charles,
I understand your concern for your little pup. Without examining her myself, it is hard to make specific conclusions. What you describe could be caused by a dental problem, but to know for sure you would need to schedule an appointment with your vet. Since your girl is exhibiting signs of pain and lethargy, I would encourage you to have this addressed sooner rather than later. Things can sometimes progress quickly, and I don’t want this to turn into a life-threatening situation. Hoping you can get the answers you need to restore your dog’s health and well-being. Feel free to leave an update as things unfold.
Ed Hirst says
Our 4 year old Rottweiler is currently very lethargic. She has always had bouts of lethargy after her season but this time it is going on and on. Her appetite is fine, even a bit excessive, and she is capable of short bursts of activity, usually at home or in the gardens. She has no enthusiasm for her walks, however.
The vet has prescribed her Rimadyl, for an old injury to her left front paw which sometimes plays up, but this doesn’t seem to be working this time.
She has had recent upheaval in her life: she originally belonged to my niece and partner, but a baby came along, niece moved house 6 months ago,and left Willow with me to care for her. She saw my niece yesterday and became very excited and clingy. Could separation be playing a part in this problem, I wonder?
Julie Buzby DVM says
Hi Ed,
I understand your concern for your Rottweiler. From what you describe, I do think depression from being separated from your niece could be the culprit. In these situations, before I assume a behavioral cause, I like to rule out medical issues. I would recommend you talk to your vet about checking some routine lab work just to be sure nothing is missed. If the results are normal, then maybe you can discuss trying a course of medication to help with the depression. I know Willow has not experienced the death of a housemate, but to her it may feel like she is grieving a loss. Here is a link to another article that may offer some insight: Do Dogs Grieve? Helping Your Dog Cope With Loss
Hoping you can find a way to get your girl back on track and living her best life. Wishing you both brighter days ahead and praying for a positive outcome. ♥
Linda Wilson says
My 11 year old baby was put in oxygen for 3 days due to congestive heart failure. After 3 days he was sent home with 7 pills. When he came home he was happy, breathing well, and ate a bowl of chicken. After a big struggle giving him his pills wrapped in food, peanut butter, ice cream, he won’t eat and is afraid of us. He’s only drinking water. We are at our wits end. Can you please help?
Julie Buzby DVM says
Hi Linda,
I am sorry your senior guy is experiencing so much anxiety with taking his medications. Please make sure your vet is aware of this issue. While his behavior may be due to the anxiety, it could also be a sign of his heart condition worsening. Your vet may need to schedule a recheck just to be sure there are no other problems contributing to these symptoms. Then they may be able to switch your dog’s medications to a liquid form or have them flavored so they are more appealing. In the meantime, here is a link to another article with more tips and tricks to try and get your boy to take his pills without all the struggle: Your Dog Won’t Take Pills? 5 Easy Solutions for Uncooperative Pooches
Wishing you all the best and hoping for an easy solution.
Tara says
About an hour or 2 after my dog ate about a handful of cooked chicken with her food last night, she started to become unwell.. I think the chicken may have been too old, but it didn’t smell or anything. She is very lethargic, She hasn’t thrown up or had diarrhea. She is having difficulty with walking up and down the stairs. She is very cautions and slow. She is still drinking and still eating her treats. Could it just be a mild cause of food poisoning?
Julie Buzby DVM says
Hi Tara,
I understand your concern for your dog and what you describe has me worried too. I am not sure exactly what could be causing this sudden change in behavior, but it sounds like it could be an emergency situation. Please call your vet right away and see if they want you to bring your girl in for an exam. Hoping all is well and wishing you both the best.
Ruthie says
Our Golden isn’t even two years old yet and his hind legs suddenly went out from under him. He had just been fetching balls then turned lethargic. He ate but had to have food brought to him rather than his usual “can’t wait feed me now” … now his eyes roll back in his head, nose is warm and dry but gums are a healthy pink. No idea what brought this on.
Julie Buzby DVM says
Hi Ruthie,
I also am not sure what could be causing these worrisome symptoms in your pup. With such a sudden and severe change in behavior, I highly recommend you contact your vet as soon as possible. This has me very concerned! Hoping all is well and praying for a positive outcome.
Kevin Branch says
My Mastiff Rottweiler mixed Stormy was adopted by myself after my Dad tragically passed last year…he’s fed and well taken care of…earlier this evening he’s just slowed down considerably and not as active…could it be he could be just depressed at not seeing my Dad anymore!
Julie Buzby DVM says
Dear Kevin,
I am so sorry for the loss of your dad and commend you for taking his sweet boy home with you. While dogs can definitely grieve a loss and be depressed, I would not think you would just be starting to see the signs now. With this recent change in his behavior, I am very concerned there could be a medical cause that needs further investigation. I encourage you to schedule an appointment with your vet and think it would be best to have your pup evaluated as soon as possible. Hoping for some answers and praying for a positive outcome. Bless you. ♥
Andrea says
Hello,
My almost 9 year old dog is very lethargic lately. He’s usually very loving and cuddly, but lately, he doesn’t want anyone to touch him besides just a little pat. He sleeps all day long and today he barely ate. What is wrong with my little old pup?
Julie Buzby DVM says
Hi Andrea,
I am sorry your senior guy isn’t feeling well. I wish I could tell you what was wrong, but without examining him myself there is no way to know for sure. I encourage you to make an appointment with your vet to have him evaluated. Hoping you can get some answers and find the best way to restore his quality of life.
Sara Crowe says
Good morning.
My 8-month old Australian Shepard/Poodle mix is very sleepy. Not sure if this is lethargy or just a tired day. He has been to his day care facility every day this week where he swims and runs around from 8am to 5pm. Today he isn’t interested in his morning feeding (he doesn’t always eat this) or treats which he normally inhales. He got up when I went to the door and came out with me to pee and poo. Then he came back inside and laid right down again. His poo was normal and he has no other definitive signs of something being wrong. He’s so young and normally a lunatic so I am a bit concerned. Should i wait until tomorrow to see if he’s just having a lazy day? Or bring him into the Vet today? Thank you. (Sara in Boca Raton)
Julie Buzby DVM says
Hi Sara,
I am sorry your boy is acting very tired and not quite himself. I applaud you for being so vigilant and taking note of this subtle change in his behavior. Without examining your pup myself, it is hard to know if this is truly cause for concern. My gut tells me your senior guy may have over done things a bit this week, but I like to err on the side of caution. I think it would be best to contact your vet and update them on this issue. They can advise you on how to proceed and tell you what to be monitoring for at home. How are things today? Hoping all is well. Best wishes to you and yours.
Roger Ikola says
Our 11 year old Engish Setter got a wound on leg that became infected. After 2 weeks of antibiotics wound healing but he still won’t eat and all he does is sleep..he has been to Vet twice..
Julie Buzby DVM says
Hi Roger,
I am sorry your senior guy is not feeling well. It sounds like there is something complicating his recovery and there may need to be some more investigation. Make sure your vet is aware that things are not progressing as hoped. Praying for healing and peace.
Lori eEverud says
hi. 11 yr old mixed herding dog. not normally very active, in good weight. I just brought a puppy home 4 days ago… She doesnt like a lot of fuss..Now she is lethargic, color is good. Drinking more than normal and not demanding pets. Offered a couple kibble, not interested. Not very impressed with puppy, doing her best to avoid it. Depression? or do I need to go to vet. Vet is demanding a whole round a vaccines to even come in the door, and I give mine at home. Did so 5 months ago. ideas?
Julie Buzby DVM says
Hi Lori,
I understand your concerns about these behavioral changes in your senior dog. Without examining her myself, it is hard to know if this is truly something to be worried about or not. It is very possible she is struggling with the addition of your new puppy, but a medical cause can’t be ruled out without some testing and evaluation. How are things today? Hoping all is well and both dogs are getting along and enjoying each other’s company. Feel free to leave an update if you have a chance.
Audra Hahle says
Our 7 year old Heidi girl has been very slow and not herself for the last 3-4 days. She is drinking water, but uninterested in her dog food. I boiled some chicken and she has been eating that today. She seems to just be less active and not herself. I’m not sure if she could just have a virus or if there is something else going on. The vet was unavailable today so we would have to take her to an emergency vet over an hour away so we have held off to see if she improves today. Not sure what to do.
Julie Buzby DVM says
Hi Audra,
I am sorry Heidi isn’t acting like herself and doesn’t have much of an appetite. Without personally examining her, I can’t tell if this is truly an emergency situation or if this will straighten itself out in a few days. To play it safe, it is probably best to have her evaluated by your vet as soon as possible. How is Heidi feeling today? Were you able to get her an appointment? Hoping for good news. Feel free to leave an update if you have a chance.
Marsha Johansen says
Our 7 year old Golden Retriever is very energetic first thing in the morning. He’s hungry, ready to go on a long walk, but by the afternoon he refuses to go on walks and wants to sleep the rest of the day. He has no problem with meals; is overweight. We did cut out one of his meals so he can take off some of the extra weight, but his lethargy seems to have started in the past few weeks. We just took him to the vet for his rabies vaccination and the doctor didn’t seem concerned with his weight issues or anything else; said he looked fine!
Julie Buzby DVM says
Hi Marsha,
I understand your concerns with this new behavioral change in your Golden. Without examining him myself, it is hard to make specific conclusions. I do think you are right to be asking for some more investigation. This could be nothing, or it could be the start of something serious. As long as you are ok with knowing you could spend a bit of money on testing and still not get any answers, I think it would be wise to ask your vet for some testing. Blood work and maybe some x-rays wouldn’t be a bad place to start. Your senior guy is lucky to have you advocating for his health and well-being. Wishing you both the best and keep up the good work!
Liz says
Dog went to the vet due to seeming to be in pain around the stomach. They performed labs and took X-rays. All seemed ok. He did have a large bowel movement while there. Around noon on Friday they gave him a shot for pain. It is now 5;00 pm the next day and he is extremely lethargic and can not stand. He will eat and drink by hand while laying down. Thought this was just due to pain shot but worried since it is more than 24 hours later there is something wrong.
Julie Buzby DVM says
Hi Liz,
Please make sure your vet is aware your dog is having these ongoing issues. I am concerned his lethargy and lack of appetite may be symptoms of a more serious problem. Does your vet have access to ultrasound? This may be the next best step in getting a diagnosis. With what you are describing I would highly recommend having your pup rechecked as soon as possible. Hoping all is well and you have found some answers. Feel free to leave an update if you have a chance.
Annie Johnson says
Titus, my 9 year old 130# American Bull suddenly started acting sick after a day of guests were over for target shooting and fireworks. He was very upset by all of the loud noise, but didn’t start acting lethargic until the next day. He started off with heavy panting and weakness. We noticed a lot of discharge and redness in his eyes. All of that cleared up (except for the redness), but now he just lays in his crate breathing a little funny.
Julie Buzby DVM says
Hi Annie,
You are right to be concerned about Titus and these new symptoms. The heavy panting and red eyes could be side effects from stress/anxiety. But the weakness and breathing funny have me concerned. Since I have not examined your dog myself, I can’t make specific conclusions. I highly recommend you call you vet and let them know about these worrisome new issues. They will probably need to see Titus and do an exam and possibly run some tests. I hope your big guy is ok and back to his normal happy self. Feel free to leave an update if you have a chance.