The effects of vaginal delivery and cesarean section on bladder neck mobility and stress urinary incontinence.

We investigated the effects of vaginal delivery (VD) and cesarean section (CS) on bladder neck (BN) mobility and genuine stress incontinence (GSI). Of the 230 patients included in the study, 95 had CS, 95 had VD and the remaining 40 continent nulliparous women served as controls. In both the CS and the VD groups 40 women had delivered once, 35 women twice and 20 women three times. Perineal ultrasonography was performed in all patients. Vaginal delivery affects BN mobility and its position more negatively than does CS, and increases its mobility in two directions. The CS group also has similar findings after the third delivery. The GSI rate was not significantly different between the CS and the VD groups, but the VD group had a higher percentage. Our study also shows that BN mobility is associated with GSI compared to the continent controls.