Bladder diverticula in patients with prostatism

The incidence of bladder diverticula was investigated in a patient material referred for prostatism. Out of 104 referred patients 69 were examined by cystography and urography. Fifty-one per cent had diverticula on cystography but only 30% on urography. Diverticula were significantly related to age. They were significantly associated with upper tract dilatation and tended to relate to residual urine volume and bladder instability. There was no relation to the bladder neck-verumontanum distance, maximal flow rate or bladder capacity.