No randomized control trials (RCT) have been performed comparing the FAST method to the traditional retrograde voiding trial in subjects undergoing vaginal apex prolapse surgery despite the promising findings that FAST voiding trials are as reliable and safe as retrograde voiding trials in patients undergoing anti-incontinence surgeries. Standard in our practice is to perform a voiding trial on postoperative day 1 on all patients after vaginal apical prolapse surgery if they are to be discharged without a catheter. Investigators would like to compare the FAST voiding trial to a traditional retrograde fill voiding trial with respect to the rate of catheterization among those discharged without a catheter within the six-week postoperative period in patients undergoing a vaginal apex prolapse surgery. Investigators hypothesize the FAST voiding trial method is not inferior to traditional retrograde voiding trial. Subjects will complete questionnaires to examine postoperative bladder function, symptom distress and quality of life before and after surgery during their routine postoperative visits.