<prompt> Which is not a feature of posterior urethral valve:Palpable bladderPainful stress incontinenceRecurrent UTIHydronephrosis  <response>: b. Painful stress incontinenceRef: Nelsons 20e p 2562-2567, 2573, Ghai 8e p 485-486High Yield Points:Posterior urethral valves are the commonest cause of lower urinary tract obstruction in boys.In PUV, Prostatic urethra dilates, bladder muscle undergoes hypertrophy; Hydronephrosis or renal dysplasia may also develop;Vesicoureteral reflux occurs in 50 and 30 of patients experience end stage renal disease or chronic renal insufficiency. 