Retrograde Urethrogram

Retrograde Urethrogram - NU Hospitals

What is RGU ?

RGU is a special X-Ray procedure done to study the urethra i.e., the terminal part of your urinary passage, to look for any abnormalities like stricture (narrowing) etc. It is usually done in males.

When is an RGU required ?

When you have a poor urinary stream, straining to pass urine, dribbling of urine, injury to the genital region or when your Doctor suspects an abnormality of the urethra based on your other investigations like the ultrasound scanning, uroflowmetry test results.

What is done ?

A local anesthetic solution is first introduced through the urinary outlet, in the reverse direction to the normal urine flow. Following this, the contrast solution (which looks opaque on x-rays) is pushed in the same manner and this is captured on an x-ray film to document the findings.This procedure is done under strict aseptic precaution. The contrast is injected into the urethra by placing a catheter at the tip of the penis.

Any specific advice ?

There is no need of any preparation before this test.If you have an active infection of the urinary tract, indicated by burning sensation while passing urine, pus in the urine or fever, you will need to be treated for this before undergoing this test

Will I have any pain (or) other problems during the procedure ?

No, the procedure does not involve any injections. When the local anesthesia solution is introduced you will only have a discomfort. But if you have pain, immediately report to your Doctor and the procedure may be abandoned.This procedure does not involve any adverse reaction of the contrast agent used. Very rarely you may have reactions to the contrast (or) the local anesthesia itself. Very rarely this can be life threatening.

Will I have any problems following the procedure ?

You may feel burning sensation while passing urine and may pass slight blood tinged urine once (or) twice following the test. In case the problems persist (or) you develop fever, scrotal pain, then immediately report to your doctor.

When will I know the result of the test?

The images are uploaded immediately. Depending upon your doctor’s availability, you can consult the doctor. Compact disc (CD) of the images will available after 1 hour and is given at no extra cost. A printed report will be available by next 1 working day. And you can ask the radiographer to email the report to your email ID or you can collect hard copy.