Urodynamics Studies (UDS)

Urodynamics studies measures how well the bladder, sphincters, and urethra store and release urine. This information helps your diagnosis and treatment options.

When do you need to do the test?
  • Your treating doctor may ask you to do the test if you have any of the following problems:
    • Loss of bladder control (urinary incontinence)
    • Frequent urination
    • Painful urination
    • Sudden urge to urinate.
    • Difficulty with urination
    Before the test (Preparation)
    • You may drink as usual on the day of the test.
    • You may need to take antibiotics in advance.
    • Follow the Enema instructions given to you by the clinic.
    • Reschedule the test if you are menstruating.
    What should you expect?
    • Two small tubes (catheters) are inserted into the body: one into the bladder and the other one into the rectum.
    • The first tube will be used to fill the bladder with saline and measure the pressure in the bladder. The other tube will measure the pressure in the abdomen.
    • During bladder filling, sensations and feelings will be noted.
    • The doctor will ask you to empty your bladder during the test.
    • The catheters will be removed after the test.
    After the test
    • Drink plenty of fluids in the 24 hours following your test.
    • You may experience mild discomfort during urination that should go away within 24 hours.
    • You can resume normal activities immediately after urodynamic testing.
    Test Duration

    The procedure takes about 30-60 minutes.