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My puppy's poop has mucus and red. Should I take him to the vet?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | unspayed | 2 years and 4 months old | 55 lbs

My dog had pups 4 weeks ago and the a few days ago we took one to the vet because we thought he was constipated and he wasn’t eating as much food as the others, but they said he was alright. He pooped yesterday and today but the poop had a little mucus in it both times and the first time a little red in the mucus. What do you think this means? Is it necessary to take him again? Thanks

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1 Answer

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Answered By Dr. Heidi DVM, CVA, CCRT, CVTP, CVSMT, CVCH

Veterinarian, Certified Veterinary Acupuncturist, Certified Canine Rehabilitation Practitioner

Published on February 25th, 2018

Anytime stool stays in the colon longer than normal (such as with mild constipation), it can become a little dry, so there will sometimes be mucous present from the colon secondary to irritation. That would also explain the small amount of red as well. If Loki develops diarrhea, is not continuing to pass stool normally, is not eating well, or is passing bloody stool, then I would recommend having your vet examine him again. Good luck! I hope that was helpful and answered your questions. Thanks for using Petco Pet Education Center, formerly Petcoach.

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