Female voiding dysfunction: prevalence and common associations.

The understanding of voiding dysfunction has been greatly assisted by the current introduction of clear definitions for its diagnosis and for the abnormalities of urine flow rates and postvoid residuals that are its basis. Its prevalence in women with symptoms of pelvic floor dysfunction is up to 40%. Most of the recent research has centered on the associations of voiding dysfunction with age, pelvic organ prolapse, and prior continence surgery. The effects of parity, medications, and pelvic tumors have also been explored.