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Why is my 7-month puppy having diarrhea with mucus? What to do?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | unneutered | 7 months and 11 days old | 8 lbs

Hi, My 7 month old puppy suddenly started pooping alot recently, and by recently i mean he had a regular size poo around 12am then at 2am his poo when a little softer with some mucus, and at 6am his poo became a light brown diarrea with mucus in it. And by the way hes breathing and behaving i know he doesnt feel good because he seems like hes trying to calm himself down and is lightly shaking but its also hard to tell because its so late at night and its really cold outside. What should i do?

1 Answer

Most Helpful Answer

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Answered By Dr Stafford, BVetMed, MRCVS

Veterinarian

Published on October 25th, 2017

It sounds like your puppy has developed a touch of gastroenteritis which is relatively common. Usually it will resolve in a few days if you starve the dog for 24 hours then feed plain chicken and rice until back to normal. It is also worth worming the pup. Also if it is really cold you may need to bring the pup in whilst it is sick. If the puppy starts to deteriorate or is not improving head to the vet.

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