Urethral Length Measurement in Women Undergoing Suburethral Sling Operative Procedure

Inclusion Criteria: 1. Patient has objective, demonstrable signs of stress urinary incontinence (SUI), including patients with intrinsic sphincter deficiency (ISD). Objective testing includes: standing stress test, urodynamics evaluation or pad test. 2. Patient is age 18 or older. 3. Patient agrees to participate in the study, including completion of all study-related procedures and evaluations, and documents this agreement by signing the Institutional Review Board/Ethics Committee-approved informed consent form. 4. Patient is able to fill in all questionnaires (based on judgment of investigator) Exclusion Criteria: 1. Patient has an associated or suspected neurological disease. 2. Patient has an active lesion or present injury to perineum or urethra. 3. Patient has a urethral obstruction. 4. Patient has significant pelvic organ prolapse (Grade III/IV) requiring surgical treatment. 5. Patient has current urinary tract infection.