[Urinary bladder diverticula].

We describe two patients with urinary tract infection and obstructive voiding problems which lasted for respectively 21 months and five years before a bladder diverticulum was diagnosed by cystography and cystoscopy. Both patients were operated on by open diverticulectomy. The post-operative courses were uneventful and both patients were relieved of urinary symptoms after surgery. The article includes a review of the literature on bladder diverticula.