患者女性,30岁,农民.因血吸虫皮内试验阳性,于1982年11月23日进行直肠活检,查血吸虫虫卵,在距肛门10cm 3点处取组织一块,直径约0.4cm,按常规止血,无出血后取出肠镜.29日起连续4次血便,鲜红色,又住院,入院后又两次便血。既往无肝病、内痔、出血紫癜史.体检无特殊.血红蛋白8g,血小板13万/mm~3,出凝血时间各为1分30秒和1分.直肠镜检见原取组织创口有渗血.局 Female, 30 years old, farmer.As a result of intradermal test for schistosomiasis, rectal biopsy was performed on November 23, 1982, and schistosomiasis eggs were examined. Tissue was taken 10 cm 3 from the anus and the diameter was about 0.4 cm. , Without bleeding after removal of colonoscopy .29 on the 4th consecutive bloody stool, bright red, and hospitalized, admitted to hospital after two blood in the stool. Past no liver disease, internal hemorrhoids, bleeding history of purpura. No physical examination. Hemoglobin 8g, platelets 130,000 / mm ~ 3, the clotting time of 1 minute 30 seconds and 1. Colonoscopy see the original tissue wound bleeding. Bureau