RecruitingDevice studyBELIEVE Trial: Bulking vErsus sLing for Treating Stress Urinary IncontinEnce at the Time of Vaginal prolapsE Repair (BELIEVE)The goal of this clinical trial is to learn if retropubic midurethral sling (RP-MUS) or bulkamide injection (PAHG) at the time of pelvic organ prolapse repair is better from the patient's perspective. The main questions it aims to answer are: What is the average difference in the urogenital distress inventory (UDI) long form score 24 months after surgery for each procedure? Which procedure has the fewest complications and lowest short- and long-term morbidity profile? Participants will: Be blinded and randomized to one of two procedures for the duration of the study, 24 months. Complete 6 total visits for the clinical trial including validated questionnaires. Few participants will be selected to complete a qualitative interview at 3 timepoints over 24 month duration of the study.