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My puppy keeps vomiting food after eating and won't eat. What's wrong?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered | 20 lbs

My puppy is boxer/bull terrier mix. He's vomiting his food about 5 min after eating. He did so with 5 meals and now he won't eat his food. I gave him a milk bone and he was gnawing on it. He's drinking water and he's sniffing for food. I noticed he's ears, eyes, paws and nose are pinkish. What could it possibly be?

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1 Answer

Most Helpful Answer

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Answered By Shaneez Wallani, DVM

Veterinarian

Published on September 5th, 2017

Vomiting could be caused by parasites, change in diet, toxin ingestion, infectious viral diseases, blockage in the intestines caused by ingestion of a foreign body, or a mass/growth in the gastrointestinal tract. There is also the possibility of parvovirus infection (a potentially fatal disease that causes gastrointestinal issues such as vomiting and diarrhea) which can be very severe in puppies. Please make an appointment to have Leo seen by a veterinarian as soon as possible for diagnosis and treatment, as a puppy who is vomiting and not eating can rapidly develop low blood sugar and dehydration that can be very dangerous and even fatal if left untreated.

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