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Why is my Havanese vomiting, has bloody diarrhea, and won't eat?

Updated On September 23rd, 2025

Pet's info: Dog | Havanese | Male | neutered | 13 lbs

We have a 5 yr old havanese with onset of bloody diarrhea and vomiting since Thursday. He hardly eats or drinks. Looking at symptoms it could be IBS or viral. Suggestions?

2 Answers

Most Helpful Answer

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Answered By Dr Stafford, BVetMed, MRCVS

Veterinarian

Published on June 17th, 2017

Hello, Castro has been sick for some time now, I'm sure he is very sore and must be quite dehydrated. I would take him to the vet as a matter of urgency. He will be examined and likely need medications and possibly a drip to dehydrate him. Bloody diarrohea can be caused by many diffent types of infection causing gastroenteritis , parasites, viruses and bacteria. Like you say some bowel conditions can cause it, but the vomiting would be more indicative of gastroenteritis.

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    Answered By Emily, DVM

    Veterinarian

    Published on

    This could be hemorrhagic gastroenteritis which can cause significant dehydration and electrolyte abnormalities. Castro needs to get checked out by a veterinarian as soon as possible. Unt then offer him only small amounts of water at a time and do not give any human medications as they can make him sicker.

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