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Why is my dog's chronic vomiting and diarrhea getting worse each year?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 70 lbs

Our 7 yo black lab has had chronic issues with diarrhea and vomiting and has gotten worse each year. No bloody/ tarry stools but the intensity and frequency has gotten worse each year. As well as minimal weight loss but that's due to better exercise and food management.

1 Answer

Most Helpful Answer

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Answered By Jessica Keay, DVM

Veterinarian

Published on June 8th, 2017

In cases of chronic (long term) vomiting and diarrhea we do often worry about possible inflammatory bowel disease. This is one of the most common causes of ongoing vomiting and diarrhea in pets. If your vet hasn't discussed this condition with you yet, I would recommend asking if they feel it is possible your dog could suffer from IBD. Your vet may do some testing (bloodwork, fecal tests) to rule out other possible causes such as parasites and metabolic diseases. To prove a pet has IBD often requires a biopsy of the intestinal tract, but sometimes we will treat and monitor for response instead. Treatment may include special hydrolyzed protein diet, and medications to decrease inflammation in the GI tract such as metronidazole, prednisone, azathioprine, and budesonide. Here is an article with more detailed information on this condition: http://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=598

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