2. The ureteropelvic junction is narrow, and the renal function is still good, so it is feasible to remove the narrow segment of pyeloplasty.

3. If the ureter stricture is not large, it is feasible to remove the stricture and end-to-end anastomosis.

4. Ureteral bladder replantation for lower ureteral stricture is feasible.

5. Extensive ureteral stricture and good renal function should be treated with ileureterectomy.

6. First use Class A drugs to prevent infection.

7. Infected. In order to control infection, drugs in item "B" or "C" can be used.

8. Generally choose intramuscular injection or intravenous administration. In order to protect renal function from damage, drugs with high nephrotoxicity are prohibited or used with caution.