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My dog has soft, watery, mucus stool. Is it serious? What to do?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Female | spayed | 2 years and 10 months old | 11.8 lbs

My dog Harley has been having soft semi loose stool sometimes and just today she had a watery mucus semi soft stool should I worry she has a vet appointment on Monday to get the canine influenza vaccine and her annual check is due may aswell,I took pictures of today's stool to show my vet I'm not sure if that makes me a weirdo but I prefer to have accurate evidence to go with my explanations and concerns so I tend to document whatever is necessary so I can give as much info as needed.

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1 Answer

Most Helpful Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on February 7th, 2019

That is good that you actually took photos! It’s so much easier to see the stool than to get a verbal description. Loose stool can be a sign of many conditions and if you are seeing frequent signs of it, it could indicate parasites, inflammatory bowel disease, bacterial over growth or just dietary intolerance. At 2 years old, Harley is not likely to have other conditions that can cause frequent soft stools like liver or kidney disease, or lymphoma but it is possible. Take a look around her environment and see if there’s anything she could’ve gotten into in the house or the yard. Dogs will often eat things that upset their stomach’s like dead earthworms or garbage. I recommend to call your veterinarian and let them know what is happening. They may ask to see Harley earlier or they may post pone her vaccines. If Harley is acting completely normal, is not having any vomiting and has a normal appetite, this could just be a passing thing. Go ahead and switch her to a bland diet of boiled white meat chicken (25%) and boiled plain white rice (75%). It will measure out cup for cup of just like her dog food. Feed her this for 24 hours and if things are looking better wean her back to her regular food over a couple days. if Harley is showing signs of illness, then I would recommend to have her seen today if possible. Take in a stool sample when she goes to the vet as she is likely due for parasite testing anyway. I hope this is helpful and that she gets back to Norma quickly! Please feel free to post any additional questions.

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