The treatment of hydronephrosis caused by congenital ureteral stricture is mainly to relieve obstruction, improve renal function, relieve symptoms, eliminate infection and repair its normal anatomical structure as much as possible. The way of treatment:

1. Local treatment: For the lesions at the obstruction site, local treatment can be used, such as adhesion separation, cutting off the fibrous band, vascular transposition and anastomosis, etc.

2. When the obstruction has caused severe hydronephrosis, you must first make a fistula and drain.

3. Plastic surgery: The key points that plastic surgery must master: ① Make pyeloplasty at the lowest point of the renal pelvis. ② The ureteropelvic anastomosis should be funnel-shaped. ③ When repairing, the surrounding fibers, adhesions and scar tissues should be removed, but the blood supply should not be damaged. ④ Resection of redundant renal pelvis wall to maintain a certain renal pelvis tension. If the hydronephrosis is too large, the thin renal cortex can be folded upside down and fixed to reduce the renal internal volume. ⑤ To reduce the leakage of urine at the anastomotic site, double pigtail catheters can be placed. In order to avoid scar fibrosis caused by urine leakage and hemolysis stagnation around the anastomosis, a negative pressure suction tube can be placed outside the anastomosis to fully drain. ⑥ There are many plastic surgery methods, but at present, considering the etiology and pathology, it is considered that it is better to remove the diseased segment and then anastomose it.

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