Proctitis is inflammation limited to the distal 12–15 cm of the rectum. It may be acute or chronic, infectious, inflammatory, ischemic, or radiation-induced. Because the rectum stores stool just before defecation, even limited mucosal irritation produces prominent local symptoms that patients notice immediately. Core rectal symptoms Tenesmus: a persistent, often painful urge to defecate despite an empty rectum; may interrupt sleep. Urgency: sudden, compelling need to reach a toilet; accidents occur if access is delayed. Frequent, small-volume stools: 5–10 passages daily, each <50 g, sometimes only mucus or blood. Rectal bleeding: bright red streaks on toilet paper, coating stool, or... Learn more