自 1990年以来采取低位切扩法治疗 5 0例肛裂 ,取得良好效果 ,现报告如下。1　临床资料5 0例肛裂均为单发性 ,均位于截石位 6点肛管下段 ,肛缘上方 ,均有裂痔将裂面下端两侧皮肤锁定情况 ,裂面均可见到肛纤维组织 ,裂长为 0 .5 cm 30例 ,0 .5～ 1cm 15例 ,1～ 1.5 cm5例。病程 Since 1990, low cut method to treat 50 cases of anal fissure, and achieved good results, are as follows. 1 Clinical data 50 cases of anal fissure are solitary, are located in the lithotomy at 6 o’clock lower anus, anal margin above, there are split hemorrhoids will crack the lower side of the skin on both sides of the lock, can be seen on the surface of the anal fissure Tissue, crack length 0 .5 cm 30 cases, 0 .5 ~ 1cm 15 cases, 1 ~ 1.5 cm5 cases. Course of disease