Surgical treatment of hydronephrosis should be carried out as soon as possible. Reasonable application of plastic surgery technology to correct the abnormality of ureteropelvic junction and strive for a greater degree of renal function recovery. Hydronephrosis is serious and renal function is seriously damaged. If the contralateral kidney is normal, nephrectomy for hydronephrosis is feasible.

The principle of operation is that simple orthopedic surgery should be performed when the obstruction is light and the dilatation of renal pelvis and calyx is not serious; If the dilatation is obvious, the narrow segment of the lesion and the excessively dilated renal pelvis should be removed, and then anastomosis should be performed; In more serious cases, nephrectomy is performed.

The treatment of hydronephrosis should be more cautious, and the kidney should be preserved as much as possible. Generally speaking, there are several situations:

1. One side of hydronephrosis is serious.

One side is lighter: the severe side can be treated first. In order to avoid renal insufficiency, the safety of contralateral operation after successful operation can be increased. Surgical indications should be carefully judged on the lighter side and closely observed when necessary.

2. Bilateral hydronephrosis is serious.

It can be treated by stages, but it is better to treat the heavier side first.

3. Hydronephrosis on both sides is light.

Careful analysis should be made to determine the indication of operation.