重复输尿管足常见的先天畸形,发生率约为1/150人。如为完全性重复,输尿管功能多正常,患者亦无症状。如为部分性重复,则可出现输尿管输尿管返流。Kaplan等指出:(1)返流见于两个方向,造成钟摆样或“See—Saw”样作用。(2)输尿管中下1/3融合时,返流尿最最大。(3)这种返流主要见于女性患者。输尿管输尿管返流可造成上尿路功能性梗阻,使尿液排出迟缓,易敛尿路 Repeated ureteral common common congenital malformations, the incidence of about 1/150 people. Such as complete repeatability, ureter and more normal function, the patient is asymptomatic. If part of the repeat, ureteral reflux may occur. Kaplan et al. (1) show that the regurgitant occurs in both directions, resulting in pendulum-like or “See-Saw” effect. (2) When the ureter in the next 1/3 fusion, the largest reflux of urine. (3) This type of reflux is mainly seen in female patients. Ureteral ureteral reflux can cause functional obstruction of the upper urinary tract, so that the urine is discharged slowly, easy convergence of the urinary tract