儿童输尿管口囊肿常引起同侧肾积水,肾功能减退,有时还易并发感染,需要及早外科处理以引流减压,保护肾功能。作者用F10电切镜和Bugbee电极于输尿管口囊肿下方与膀胱壁交界处作一横切口,长约2～3mm,除非输尿管口位于囊肿下部,则可包括在切口之内,一般切开不经过输尿管口,也不做囊肿去顶。在患侧腰部加压,囊肿内压力增加,有利于切开操作的进行。术毕不放输尿管支架,也不留置导尿管,但围手术期应用抗生素,术后2～3月行IVP和排尿时的膀胱造影检查。作者用以上方法治疗了5例7侧输尿管口囊肿,左侧3例,双侧2例,7侧都没有重复肾畸形,女4例,男1例,年龄1月～13岁,都有临床症状,1例 Children with ureteral cyst often cause ipsilateral hydronephrosis, renal dysfunction, and sometimes complicated by infection, the need for early surgical treatment to drainage decompression, protection of renal function. The author with the F10 resectoscope and Bugbee electrode in the ureteropelvic cyst at the junction of the bladder wall with a transverse incision, about 2 ~ 3mm, unless the ureteral orifice located in the lower part of the cyst can be included in the incision, the general cut through Ureteral orifice, do not do cyst to the top. Pressure in the affected side of the waist, cyst pressure increases, is conducive to the operation of incision. Ureteral stent surgery is done, nor indwelling catheter, but perioperative antibiotics, 2 to 3 months after IVP and voiding when the bladder imaging. The above method was used to treat 5 cases of 7 cases of ureteroblast cyst, left side of 3 cases, bilateral in 2 cases, 7 sides without duplication of kidney malformations, 4 females, 1 males, aged 1 to 13 years, have clinical Symptoms, one case