We report on three cases of severe diverticular hemorrhage. Case 1 : A 83-year old man presented with acute lower gastrointestinal bleeding. Urgent colonoscopy was perfomed, which revealed a bleeding diverticulum in the ascendind colon. At the neck of the diverticulum, a bleeding vessel was identified. Hemostasis was achieved by clipping. Case 2 : A 68-year old man was admitted to our hospital with hematochezia. Colonoscopy revealed a bleeding diverticulum in the descending colon. Early hemostasis was achieved by clipping. Case 3 : A 43-year old man presented with severe acute lower gastrointestinal bleeding. Bleeing schintigraphy showed active bleeding from the ascending colon. Urgent angiography was performed, which revealed active bleeding from the ascending colon. Embolization was performed with autoclots and platinum microcoils. Colonoscopy showed a diverticulum in the ascending colon. Clipping was performed. The patient was free from rebleeging in the follow-up period. Endoscopic therapy is useful for acheiving early hemostasis in case of acute diverticular hemorrhage.
