1. Purpose of the Study The purpose of this study is to determine whether urethral sensory feedback has a role in the micturition (bladder emptying) reflex in female controls during routine office Urodynamic Studies (UDS). UDS are current clinical tests of urethral and bladder function and consist of several individual studies including filling cystometry, pressure-flow studies, and urethral pressure profilometry (UPP). Filling cystometry focuses primarily on sensation and activity of the bladder during the filling (or storage) phase of the micturition (voiding) cycle. Pressure-flow studies (which include voiding cystometry) are used to assess the motor activity of the bladder muscle during bladder emptying. UPP assesses urethral sphincter motor function and has traditionally been used to evaluate stress urinary incontinence. Perineal patch electromyography (EMG) is often added to UDS to assess for pelvic floor muscle recruitment during voiding, which may suggest voiding dysfunction.