 The traditional backfill assisted void trial method involves the assessment of a postvoid residual PVR volume obtained either via catheterization or bladder scan 3. Recently, there have been efforts to determine ways to avoid the assessment of a PVR as it is time-consuming and potentially exposes the patient to additional catheterizations 9, 10. Many FPMRS providers utilize the backfill assisted method without assessing a PVR and instead utilize a certain voided volume threshold to determine adequate voiding. However, to date, no one has directly studied this approach or compared the traditional backfill assisted void trial to a PVR-free backfill assisted void trial. By decreasing catheterization and creating a more efficient void trial method, the investigators hope improve patients postoperative experience and reduce catheterization and risk of urinary tract infection UTI. 