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Welcome to our health education library. The information shared below is provided to you as an educational and informational source only and is not intended to replace a medical examination or consultation, or medical advice given to you by a physician or medical professional.

 

What Is a Urodynamics Study?Estudio urodin¡mico

What Is a Urodynamics Study?

A urodynamics study is a series of tests that gives your doctor a detailed look at the function of your bladder and urethra. These tests can help your doctor evaluate any problems you may be having with storing urine or voiding (eliminating) urine from your body.

Cutaway view of bladder and urethra
A problem with the nerves or muscles in the urinary tract or a blockage along the urinary tract may cause problems with storing urine or emptying your bladder.

Understanding the Lower Urinary Tract

The lower part of the urinary tract includes the bladder (which stores urine until you're ready to release it) and the urethra (the canal that carries urine from the bladder out of the body). Signals from the brain tell the sphincter (muscles around the opening of the bladder) when to relax and the bladder when to contract to let urine flow out of the body.

Why You Need a Urodynamics Study

Possible problems that you may have with storing or voiding urine include the following:

  • You may be incontinent (leak urine).

  • Your bladder may not empty completely.

  • You may have symptoms, such as the frequent need to urinate or a constant, urgent need to urinate.

  • Your urine stream may be intermittent or weak.

  • You may have persistent urinary tract infections.

Preparing for the Study

Tell your doctor which medications you're taking, and ask whether you should stop them before the study. You may be asked to keep a diary of your urination habits for a few days before the study. This diary can be a helpful part of your evaluation. Ask whether you need to arrive for the study with a full bladder.

Date Last Reviewed: 2004-08-23T00:00:00-06:00

Date Last Modified: 2002-07-09T00:00:00-06:00

  

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