Urodynamics are a group of tests related to the lower urinary tract. Your lower urinary tract includes the bladder (which stores urine) and the urethra (which is the tube that carries urine from your bladder to the outside).
Tests can include:
- measuring the pressure in your bladder by inserting a catheter into your urethra
- measuring the pressure in your tummy (abdomen) by inserting a catheter into your bottom
- asking you to urinate into a special machine that measures the amount and flow of urine