Posterior Urethral Valves (PUV) are an obstructive membrane that develops in the tube that drains urine from the bladder (urethra). The valve can obstruct or block the flow of urine if not treated in time. This condition occurs mostly in neonates. The first step in treatment is to relieve the bladder outlet obstruction by placing a urethral catheter and later on when the child is stable, a cystoscopic valve ablation or vesicostomy may be performed. The surgery takes place under anesthesia for catheter placement, suprapubic tube placement, or primary vesicostomy.