To determine the short-term effects of concurrent valve ablation and bladder neck incision on re-intervention rate for patients with posterior urethral valve.

Inclusion Criteria:

• Patients who are less than 12 years of age with presenting to the Mansoura University Urology and Nephrology Center with the diagnosis of PUV will be s creended for eligibility

Exclusion Criteria:

• Patients with other conditions that can potentially affect lower and upper urinary tract functions
• Patients who were treated with urinary diversion as vesicostomy or cutaneous ureterostomy.
• Patients who had primary treatment of posterior urethral valve ablation at other hospitals.

males less than 12 years old