重度肛门狭窄，可由多种因素引起。本科今年用直肠下动脉应支轴型皮瓣重建修复肛门，效果满意。1临床资料3例均为男性，年龄38～47岁。均为多次用u立法”作痔术后形成肛门环形疤痕挛缩，狭窄．开孔05～Oscm，周围Zcm为僵硬组织无弹性。病程3～6个月。手术方法：取膀眈截石位。 Severe anal stenosis can be caused by a variety of factors. Undergraduate this year with the rectal artery should be shaft-type flap reconstruction anus, the effect is satisfactory. 1 clinical data of 3 cases were male, aged 38 to 47 years. Are repeatedly used u legislation for hemorrhoid surgery to form an anal ring scar contracture, stenosis.Organization 05 ~ Oscm, around the Zcm for the non-elastic tissue duration of 3 to 6 months .Surgical methods: take the bite lithotomy position .