溃疡性结肠炎是一种病因至今未明的直肠或结肠之炎性溃疡性疾患,约有15%——20%病例回肠之末端亦被累及,常为慢性复发性,但亦有呈暴发性发作者。此病多见于青年及中年人,惟儿童及老年人亦不少见。本病国外报告较多,且病例有日渐增加之趋向,国内除中国医学科学院文氏及潘氏等报 Ulcerative colitis is an inflammatory and ulcerative disorder of the rectum or colon to date unknown to the present. Approximately 15% to 20% of cases are also involved with the terminal ileum, often with chronic recurrent disease but with fulminant Author. The disease is more common in young and middle-aged people, but children and the elderly are not uncommon. More reports of this disease abroad, and the increasing trend of the case, the Chinese addition to the Chinese Academy of Medical Sciences, such as Wen and Pan’s newspaper