posterior urethral valve: an unusual cause of primary male infertility

background: posterior urethral valve presenting in adulthood is uncommon. this can be an unusual cause of primary male infertility as a result of abnormalities in sexual function. case presentation: this report describes a 40 year old man who presented to us on account of inability to impregnate his wife after 2 years of marriage. history revealed poor stream of urine since childhood and passage of scanty ejaculate during intercourse. a micturating cystourethrogram revealed dilated posterior urethra in keeping with posterior urethral valves. endoscopic valve ablation was done with subsequent improvement in ejaculate volume and urine stream. his spouse achieved pregnancy thereafter. conclusion: in this report, it was found that adult posterior urethral valve though uncommon may be a cause of male infertility. restoration of fertility potential can be achieved following valve ablation.