This document discusses urodynamics testing and its role in evaluating stress urinary incontinence and pelvic organ prolapse. Some key points: - Urodynamics does not always accurately reproduce a patient's symptoms and has poor predictive value for surgical outcomes. - Pre-operative urodynamics may be useful when planning concurrent surgeries to identify issues like detrusor overactivity or voiding dysfunction. - Barrier tests to identify occult stress incontinence have low sensitivity but those with pre-op leakage are at higher risk of developing post-op incontinence. - About half of patients with pelvic organ prolapse are continent after prolapse repair alone and may not need