Treatment depends on the severity and cause of the hydronephrosis. 治疗方法依据肾盂积水的严重程度和原因而采取不同的方法。
The possible problem here is that the ureters take an abnormal course across the "bridge" of renal tissue and this can lead to partial obstruction with hydronephrosis. 这可能会使输尿管绕过一些肾脏组织而走行一条异常的途径，这可能导致输尿管堵塞而引起肾盂积水。
