Why is my dog's stool red and jelly-like, and anal glands leaking?
If the blood and mucous is coming from his anal gland, he may have an infected anal gland. If that is the case, he may need an infusion or oral antibiotics to resolve it. I have attached a link with more information about anal glands below.
https://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=625
If the blood and mucous is coming from his stool, then he may have colitis. I have attached information about colitis below.
https://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=677
Either way, both are abnormal, so I would recommend having your vet examine him and help you decide on a treatment plan.
I hope that was helpful! Thanks for using PetCoach.
Updated on September 23, 2025