Diverticula of the bladder in children.

Diverticula of the bladder in infants and children are common and occur when vesical mucosa protrudes through a congenital defect in the muscle wall. Most are primary. Diverticula secondary to obstruction or neurogenic dysfunction are not as common as was once thought. The majority of diverticula are asymptomatic but they can cause vesico-ureteral reflux, obstruction or residual urine. Diverticula also occur after bladder surgery and in association with some syndromes. Voiding cystourethrography is the most reliable method for detection.