我院开展尿道下裂成型术引例，绝大部分为1期带蒂阴囊皮瓣成型术[1]，术后发生尿瘘6例，发生率约为12％。现将其原因分析如下。1临床资料本组6例均为先天性尿道下裂，年龄1．5～18岁，平均年龄9岁。其中会阴型4例，阴茎阴囊型2例，均行1期带蒂阴囊皮瓣成型术。术后发生尿病6例 Our hospital to carry out hypospadias angioplasty example, the vast majority of 1 pedicle scrotoplasty flap [1], 6 cases of urinary fistula occurred after the occurrence rate of about 12%. The reason is now analyzed as follows. 1 Clinical data The group of 6 patients were congenital hypospadias, aged 1.5 to 18 years, mean age 9 years. Among them, 4 cases of perineal type and 2 cases of scrotum type of penis were performed one-stage pedicle scrotoplasty flap. Six cases of postoperative diabetes