Urodynamic measurement system. Unit consists of uroflowmeter to measure urinary flow, urethral pressure profilometer to measure urethral pressure, multi-channel cystometer to measure bladder capacity and response, and electromyographic recording to measure sphincter and other muscle activity. It includes a LCD monitor, a desktop PC, color printer, and automatic calibration. System is designed to evaluate the storage and transportation of urine in the urinary tract and the cause of abnormal voiding (urination).