[Epidemiology of gastrointestinal hemorrhage].

We mentioned about epidemiology of gastrointestinal hemorrhage according to the clinical statistics. Most of recent reports has been investigated by emergency endoscopic examinations. Upper gastrointestinal hemorrhage was the most frequent and its clinical severity was severer than that of lower gastrointestinal hemorrhage. Hemorrhage from small intestine was rare, however they were mostly severe hemorrhage. Peptic ulcer was the most frequent disease as the upper gastrointestinal hemorrhage. Inflammation of colon was the most in the lower gastrointestinal hemorrhage. However, the varied diseases were recognized as origin of small intestinal hemorrhage, non epithelial tumor and inflammation were important.