What if there is jelly-like discharge in stools? Is it Ulcerative Colitis? Introduction Sometimes people complain of discharge from the anus that stains their underwear, but they do not know if the discharge is pus or mucus, or if it is a simple stool that is a diluted discharge. A large amount of mucus in the stool always warns about a medical condition. Jelly-like discharge in the stools or mucus in the stools is a natural occurrence that can be