What do the results of a cystometry test mean?

Cystometry is a test that measures the pressure inside of the bladder to see how well the bladder is working. Some results may be available right away. Full results are usually available in one to two days.

• The rate at which urine flows from your bladder when you urinate is normal.
• The amount of urine left in your bladder after you urinate (residual urine volume) is less than 30 milliliters (mL).
• The point at which you first feel the urge to urinate is within the normal range, when the amount of liquid in your bladder is between 175–250 mL.
• The point at which you feel you must urinate is within the normal range, when the amount of liquid in your bladder is between 350–450 mL.
• The maximum amount of liquid your bladder can hold is within the normal range: 400–500 mL.
• Tests of the function of the nerves that control your bladder are normal.
• Urine does not leak from your bladder during the stress test.

• The rate at which urine flows from your bladder when you urinate is slower than normal, or your urine stream starts and stops.
• The amount of urine left in your bladder after you urinate (residual urine volume) is more than normal.
• You have trouble starting the flow of urine.
• The point at which you first feel the urge to urinate is more or less than normal or does not occur.
• The maximum amount of liquid your bladder can hold is less than normal or you can't feel it.
• Normal sensations and reactions do not occur when the nerves that control your bladder are tested.
• Urine leaks from your bladder during the stress test.