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Dog not eating for 5 days with black, loose stools. Is it serious?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Male | 7 years and 9 months old | 66 lbs

My dog is not eating anything from last 5 days. Passing black loose stools

1 Answer

Most Helpful Answer

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Answered By Jessica Desrosiers

Veterinary Technician

Published on November 22nd, 2018

If your dog has not eaten anything for five days and is passing black or tarry stool I would be concerned there is a stomach or GI bleed ongoing that is making him very ill. It would be best to seek care from your veterinarian or an emergency clinic immediately.

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