Section of Urology with Section ofPxdiatrics 735 frenula. In support of this theory it was shown that distal obstruction such as a stenosis of the anterior urethra [a case of a stillborn baby was demonstrated] was not associated with bladder neck hypertrophy. Furthermore, whether or not this theory of the origin of valves of the posterior urethra is accepted, many writers have drawn attention to the need to resect the bladder neck, even after the valves have been destroyed, before adequate bladder emptying can be achieved.