**4.7.5 Abdominal leak point pressure**

Similar to urethral pressure profilometry, abdominal leak point pressure is used as a measure of the urethra's ability to act as a valve to store urine. Intravesical or abdominal pressure is assessed while the patient is asked to increase their abdominal pressure by valsalva or by coughing. The abdominal pressure at which the patient leaks urine gives a measure of the closure pressure of the urethra. The greater the pressure required to produce leakage, the better the closure function of the urethra.
