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My young puppy isn't eating, vomiting, and lethargic. What to do?

Updated On September 23rd, 2025

Pet's info: Dog | Pug | Female | 1 month and 4 days old | 1.5 lbs

My 35 day old puppy hasn't been eating anything and has vomited twice. I have been feeding her cerelac. It has also been rather lethargic lately. What do I do?

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4 Answers

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on April 27th, 2018

You need to take Dora into a vet immediately. It's very concerning that such a young puppy isn't eating anything, has vomited, and has been lethargic. That indicates she is sick, and because young puppies can be so fragile and go downhill quite quickly, she needs veterinary care now. Pease take her into a vet asap.

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    Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

    Veterinarian

    Published on March 23rd, 2018

    These signs could be compatible with an inflammation infection of the gastrointestinal system and surrounding organs (like pancreas and liver). An immediate clinical examination at your local veterinarian is immediately essential to confirm these clinical suspicions and treat appropriately. Antibiotics and possibly further investigations (like abdominal imaging as ultrasound or radiographs) may be needed. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

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    Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

    Veterinarian

    Published on July 24th, 2019

    Hi, and thanks for your question. This is a quite generic but concerning presentation. Differentials are many, from gastrointestinal diseases (infection/inflammations often dietary related) to any disease that can spread systemically (causing lethargy for example) like infection, and anything that can cause pain/discomfort. A clinical examination at your local veterinarian is immediately essential to confirm these clinical suspicions and treat appropriately. Antibiotics and possibly further investigations (like abdominal imaging as ultrasound or radiographs) may be needed. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!

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    Answered By Ricardo Fernandez, DVM

    Veterinarian, Veterinary Oncology Resident

    Published on July 5th, 2018

    Hi there! Sorry to hear that Shelby is not feeling well. The clinical signs you describe are concerning when they occur in a puppy as they can be seen with serious gastrointestinal infections such as Parvovirus. Other possibilities include intestinal worms and dietary indiscretion, among other possibilities. The sooner these conditions are treated the better the outcome tends to be. For this reason, I recommend that you have Shelby evaluated by your veterinarian to check for these possibilities and to start therapy based on findings. At the very least they can address dehydration if present and start her on anti-nausea medications. Good luck! Keeping my fingers crossed for your girl!

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