Urodynamic tests measure the storage of urine in the bladder and the flow of urine from the bladder through the urethra. Your doctor may want to do an urodynamic test if you are having symptoms that suggest problems with the muscles or nerves of your lower urinary system and pelvis.

The procedure involves inserting a catheter (thin tube) into the urethra and another one into the rectum. A machine then measures the activity of your bladder.

A 3-day bladder diary will be sent to you. You need to fill this up and bring it on your urodynamics appointment.

• Urodynamics Information Sheet + Bladder Diary (PDF, 680.3 KB)