目的　提高外伤性后尿道狭窄或闭锁治疗效果。方法　回顾性分析了经会阴瘢痕切除直针吻合治疗 18例外伤性后尿道狭窄 /闭锁资料。结果　 18例均获得康复 ,出院时能顺利扩进 2 2F探子 ,排尿通畅 ,除 2例阳痿 ,余病人均能行性生活。结论　经会阴瘢痕切除直针吻合治疗外伤性后尿道狭窄 /闭锁是基层医院首选方法 ,注意围手术期各种处理是手术成功关键 Objective To improve the treatment of traumatic posterior urethral stricture or atresia. Methods Retrospective analysis of 18 cases of traumatic posterior urethral stricture / atresia treated by perineal scar excision and straight needle anastomosis. Results All of the 18 cases were recovered. The 22F spurts were successfully expanded at discharge, and urination was smooth. Except for 2 cases of impotence, the rest of the patients could have sex life. Conclusions Perineal scar resection of straight needle anastomosis traumatic posterior urethral stricture / atresia is the preferred method of primary hospital, pay attention to perioperative management is the key to the success of surgery