近三年来,我们用自制的输尿管导管探查肛瘘30例,效果明显优于金属探针,现介绍如下。临床资料一般资料:本组30例,男24例,女6例,年龄18岁～49岁,平均28.5岁,发病至到我院就诊时间最短为1个月,最长为9年,发病前有肛管直肠周围脓肿病史者29例,有直肠外伤合并感染者1例。有5例在他院曾行激光治疗以后复发来我院,30例均诊断为单纯性肛瘘。自制输尿管导管的制作和应用:取成人 The past three years, we use homemade ureteral catheter to detect 30 cases of anal fistula, the effect is significantly better than the metal probe, are described below. Clinical data General information: The group of 30 patients, 24 males and 6 females, aged 18 years old to 49 years old, an average of 28.5 years of age, onset to our hospital the shortest time of 1 month, up to 9 years before onset There are 29 cases of history of anorectal abscess around the anorectal and 1 case of rectum infection. There are 5 cases of recurrence in our hospital after laser treatment to our hospital, 30 cases were diagnosed as simple anal fistula. Homemade ureteral catheter production and application: take adult