What is the last section of stool with blood dark red?

Hemorrhoids

are the result of varicose veins around the anus, often leading to bloody stools. Hemorrhoids rupture or friction, will cause bleeding in the anal area, so that blood appears at the end of the stool.

2, anal fissure

anal fissure is the anal skin or mucosal fissure, and mucosal rupture will cause blood outflow, so that the last section of the stool with blood.

3, ulcerative colitis

can lead to inflammation and ulcer formation of the colon mucosa. When defecation stimulation to inflammation and ulcer, may bleed, manifested as the end of the stool with blood.