This test uses an x-ray dye to evaluate the urethra, the channel
within the penis. It is most commonly done to look for obstruction,
narrowing, or to assess injuries. It is rarely done in females.
• The penis is held in an extended position using a special clamp,
and a small, flexible plastic tube (catheter) is inserted into the
urethra, through which the x-ray dye is injected.
• X-rays are taken in several positions.
• If the procedure is done on a woman, a special catheter with a
small balloon on each end is inserted into the urethra and the
balloon is used to keep the contrast medium from running out.
• There is a small risk of bleeding or infection caused by
introducing the catheter into the urethra.
• There may be some discomfort associated with insertion of the
catheter or injection of the dye.
• Some soreness or irritation at the opening of the urethra is very
common, but temporary
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