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Why does my dog have mucus in her poop after eating new treats?

Updated On September 23rd, 2025

Pet's info: Dog | German Shepherd | Female | spayed | 4 years and 8 months old | 74 lbs

My GS went from having loose stool to straight up mucus. She is eating and behaving normally, there is no blood or anythung crazy. She just went to the vet a month ago for something similar after ingesting chocolate and was tested negative for parasites and pancreatitis. She has not since had any toxic foods, but I did give her new treats a couple days ago, and this seemed to have started after that. I don’t have more recent photos of the mucus, but this is from the first day. Help :-))

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2 Answers

Most Helpful Answer

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

Veterinarian

Published on August 19th, 2020

Hi and thanks for your request. These signs could be compatible with a colitis, which is an inflammation of the last part of the intestine, the colon, usually related to dietary indiscretion. As a first approach, I would suggest to start feeding with a bland diet based on boiled chicken and rice in small portion every 6 hours for the following 48hours. Then gradually reintroduce the normal diet over 5 days. I would definitively recommend a veterinary check up if the signs persist or you notice vomiting, lethargy or inappetence. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!

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    Answered By Jessica Desrosiers

    Veterinary Technician

    Published on

    If you suspect the stool change occurred with the diet change, I would stop giving all of the new treats and go back to any food that was working before the change happened. If after a few days there is still mucus in the stool, new symptoms appear, or Aspyn seems in distress or pain, have her examined by your vet to rule out more serious GI upset or illnesses that could be causing it (parasites, chronic conditions, food allergies, etc).

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