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My 9-week-old puppy won't eat and keeps throwing up. Is it serious?

Updated On September 23rd, 2025

Pet's info: Dog | Mastiff | Male | unneutered | 2 months and 12 days old | 20 lbs

9 week old puppy not eating and when he does he pukes it up

4 Answers

Most Helpful Answer

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Answered By Christie Long, DVM

Veterinarian, Certified Veterinary Acupuncturist

Published on November 12th, 2016

This could be a number of things - parasites, a bacterial or viral GI infection, or even an intestinal blockage. At 2.5 months of age, Gus is especially at risk for parvovirus, a serious GI infection. We always worry about fluid loss in young puppies, so I would recommend getting him to a vet ASAP, to diagnose the cause of the vomiting, and start appropriate therapy.

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    Answered By Jennifer Summerfield, DVM CPDT-KA

    Veterinarian, Certified Dog Trainer

    Published on January 5th, 2017

    Poor Jack! These are very concerning signs, especially in a puppy this age - I would be very concerned that he may have a serious illness such as parvo, or an intestinal obstruction due to something he may have swallowed. I would recommend taking him to the vet immediately for an exam, as this may be a life-threatening problem - the vet can do blood work or other testing if needed to help diagnose the problem and get him started on appropriate treatment.

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    Answered By David Elbeze, DVM, MRCVS

    Veterinarian

    Published on January 21st, 2018

    Vomiting is never normal. It sounds as Bear is suffering from a gastrointestinal condition, possibly an infection. it could also be due to ingestion of a foreign body material. i would recommend taking him to the vet the first chance you get, he will need to be checked first, if the vet thinks it's a simple gastrointestinal infection he will need an anti vomiting injection, antibiotics and a special food for a few days in order to get better.

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    Answered By Daniel Fonza, DVM

    Veterinarian

    Published on February 23rd, 2018

    Hi there and thank you for using Petco Pet Education Center, formerly Petcoach! Judging from the picture, this appears to be partially digested food that Behr threw up. If this has happened before, it may be related to the diet. I would recommend changing the diet and see if this makes a difference. I would recommend Science Diet, Royal Canin, Purina One or Natural Balance as my recommendations. If the vomiting does not resolve or it worsens, I would recommend having a veterinarian examine Behr so that the most appropriate diagnostic and treatment recommendations can be made. Please let me know if you have any other questions or concerns and I would be more than happy to help you further.

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