因尿道下裂修补而作的尿道成形术,不管是作一期还是二期的,都需要某种形式的尿液转向。会阴尿道造口和耻骨上膀胱造口是两种最常用的尿液转向方法。会阴尿道造口具有使全部尿液转向的优点。而耻骨上膀胱造口的优点是作起来容易但不可能防止尿液从新形成的尿道通过。标准的会阴尿道造口术包括从尿道插入扩张器,用扩张器将后尿道和会阴部皮肤顶 Urethroplasty due to hypospadias repair, either for one or two, requires some form of urine diverting. The perineal urethral stoma and suprapubic bladder stoma are the two most commonly used methods of urinary diversion. The perineal urethral stoma has the advantage of steering all of the urine. The advantage of the suprapubic bladder stoma is to make it easy but impossible to prevent the passage of urine from the newly formed urethra. Standard perineal urethral ostomy includes insertion of a dilator from the urethra, with a dilator to the posterior urethra and perineal skin