Posterior Urethral Valve (PUV) is a rare but serious congenital condition seen exclusively in male infants. It involves the presence of abnormal membranous folds in the urethra — the tube responsible for carrying urine from the bladder outside the body. These valves obstruct the normal flow of urine, leading to increased bladder pressure and backward flow toward the kidneys (a condition known as hydronephrosis). Please visit: https://www.pedsurgerydelhi.com/diseases/posterior-urethral-valve/