肛裂是肛管远端皮肤粘膜的裂口，青壮年常见，老人和儿童少见，临床上占大学生肛门直肠疾病的第2位。经典理论认为，疼痛、出血、便秘是其临床三大特征。急性肛裂多以保守方法治疗，传统以饮食调节、缓泻剂、局部涂麻醉软膏、坐治及外洗、肛管扩张疗法等，疗效均不尽人意。我们 Anal fissure is the distal mucosal anorectal rips, young and middle-aged, elderly and children rare, clinically accounted for college students anorectal disease in the first two. Classical theory that pain, bleeding, constipation is its clinical three major characteristics. Acute anal fissure more conservative treatment, the traditional diet, laxatives, topical anesthesia ointment, sit and wash, anal dilation therapy, efficacy are unsatisfactory. we