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My puppy's yellow diarrhea has blood and mucus. What should I do?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered | 1 month and 19 days old

My puppy has diahrea he was scooting his Bum on the floor so treated him for werms put him on rice and ChIcke now hi poo is yellow followed bye like mucus with blood in

2 Answers

Most Helpful Answer

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Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on March 16th, 2020

These signs may be compatible with a persistent colitis. If no improvement is seen within 48hours of the new chicken and rice diet a check up at your local vet would be needed as antibiotics are in these cases required.

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1Pet Parents found this answer helpful

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    Answered By Christie Long, DVM

    Veterinarian, Certified Veterinary Acupuncturist

    Published on February 24th, 2017

    What you're describing sounds like diarrhea with mucous, which we would call "large bowel" (as opposed to "small bowel") diarrhea. This terminology means that the problem is in the large intestine as opposed to the small intestine, and helps us as veterinarians sort of narrow down what the issue could be. Unfortunately, there are still quite a few causes of large bowel diarrhea (many people call this colitis), including parasites, irritable bowel syndrome inflammatory bowel disease, diet sensitivity, infection, and cancer. Hopefully Suzi has something simple, and it's quite reasonable at this point for your veterinarian to run a fecal sample to check for parasites and giardia, and perhaps prescribe an antibiotics such as metronidazole or a deworming agent, along with a probiotic and bland diet. In many cases, the problem resolves with this treatment, however if it does not or if it resolves temporarily and comes back, she will likely require additional diagnostics or perhaps an hypoallergenic food trial to get to the bottom of the problem.

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