溃疡性结肠炎,又称非特异性溃疡性结肠炎,目前原因不是十分清楚,呈慢性过程,自动复发。病变主要侵犯大肠的粘膜层,从远端向近端发展,分布呈连续性,临床以腹泻粘液浓血便、腹痛为主要症状,并可发生严重的局部(肠道本身)和远处(全身性)并发症。自1997年6月～1999年6月我们采用思 Ulcerative colitis, also known as nonspecific ulcerative colitis, the current cause is not very clear, was a chronic process, automatic recurrence. Lesions mainly invade the mucosal layer of the large intestine, from the distal to the proximal development, the distribution was continuous, clinically diarrhea, bloody mucus, abdominal pain as the main symptoms, and may occur in severe local (intestinal itself) and distant (generalized )complication. Since June 1997 ~ June 1999 we use thinking