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慢性肠道感染性疾病包括Chrone′s病和溃疡性结肠炎。溃疡性结肠炎仅影响浅表粘膜,口腔至肛门的任何部位都可以发生,一般多从直肠向近端结肠发展,涉及全结肠,可达结肠末端。Chrone′s病则涉及肠壁全层。 近来,发病率逐年增高,在英国多见,亚洲地区少见,印度和中国都很少见,移居于英国的印度人亦见有患病,年龄在20岁以下者占20％。肠道慢性炎症的原因与下列因素有关:过敏、感染、遗传、代谢、自体免疫及心理问题。10％有家族史,其中自
Chronic intestinal infectious diseases include Chrone’s disease and ulcerative colitis. Ulcerative colitis affects only superficial mucosa, which can occur anywhere in the mouth to anus, and generally develops from the rectum to the proximal colon, involving the entire colon, up to the terminal of the colon. Chrone’s disease involves the full thickness of the intestinal wall. Recently, the incidence has been increasing year by year. It is more common in Britain, rare in Asia, rare in India and China, and also seen by Indians migrating to Britain, 20% of those under the age of 20. The causes of chronic gut inflammation are related to the following: allergies, infections, heredity, metabolism, autoimmunity and psychological problems. 10% have a family history, of which since