The purpose of this study is to determine the effect of additional TVT surgery on OAB symptoms in patients undergoing POP repair. It is hoped that such data will better determine the effect of either surgical intervention strategy on OAB symptoms. This is a prospective cohort study comparing patients with OAB that undergo surgical repair of their prolapse with or without additional TVT surgery. The outcomes will be measured using pre- and post-operative validated questionnaires (PFDI-20, OAB-q short form).