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?
4 Answers
Most Helpful Answer
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.
1Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on October 24th, 2017
Mucus can be caused by many different things, including intestinal parasites, inflammation in the GI tract, eating something very greasy or oily, among a few other things. If there are any other symptoms of illness, such as lethargy, decreased appetite, vomiting, etc, then Lady should go to the vet. If she is otherwise normal, you can try the dewormer and keep a close on her for a few days.
1Pet Parents found this answer helpful
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Published on December 2nd, 2019
These signs could be compatible with a colitis, which is an inflammation of the last part of 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!
2Pet Parents found this answer helpful
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Published on September 14th, 2017
Hi there. Puppies can have diarrhea and or mucus in their stool for several reasons. You Mention he had worms? Did a veterinarian give him a deworming medication? I would recommend a fecal exam looking for parasites and parasite eggs if that hasn't been done yet. Occasionally parvovirus test will have a false negative so if diarrhea or lethargy continues or if he begins to vomit please have him evaluated again. Otherwise feeding small amounts of a bland diet such as chicken and rice can help mild disease.
1Pet Parents found this answer helpful
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