A voiding cystourethrogram (VCUG) is an X-ray test. It takes
pictures of your child's bladder and urethra while he or she urinates. The
urethra is the tube that carries urine from the bladder to the outside of the
This test may be used to check how well your child's bladder works. Or it may be used to
find the cause of other problems, such as frequent urinary infections.
A doctor called a radiologist does the test. A person trained to take X-rays may help the doctor. He or she is called an X-ray technologist.
To do the test, the doctor or nurse puts a thin, flexible tube
in the opening of your child's urethra. This tube is called a catheter. Then he or she guides the catheter into your child's bladder. Next, the doctor or nurse puts a liquid that shows up well on X-ray pictures into
your child's bladder through the catheter. This liquid is called contrast material. When your child's bladder is full of
contrast material, the doctor or X-ray technologist takes X-rays. Some of them may be in different positions. These include
standing, sitting, and lying down. After that,
the catheter is removed and your child urinates into a bedpan, urinal, or towel. This empties the contrast
material from your child's bladder. While your child urinates, more X-rays are taken.
Your child may find it
uncomfortable when the catheter is put in. His or her bladder may feel very
full. Some children also feel a need to urinate when the contrast material is
Some children may feel embarrassed to urinate in front of other people.
Ask the doctor about things you can do to help your child relax and
feel more comfortable. You may be able to hold your child's hand or
try to distract your child. A nurse or nurses may need to hold your
child still while the doctor puts the catheter in and takes the X-rays.
You probably will be able to take your child home right after the test.
Your child can go back to his or her usual activities right away. But he or she may need to urinate more often for several days after the test. Your
child may also have some burning during and after urination. This usually goes
away after 1 or 2 days. If your child drinks lots of fluids, it can
help with any burning. It can also help prevent a urinary infection.
Having a test can be
stressful both for your child and for you. This information will help you
understand what you can expect. And it will help you safely prepare for the test.
Follow-up care is a key part of your child's treatment and safety. Be sure to make and go to all appointments, and call your doctor
if your child is having problems. It's also a good idea to know your child's
test results and keep a list of the medicines your child takes.
Go to http://www.healthwise.net/ed
Enter J207 in the search box to learn more about "Voiding Cystourethrogram (VCUG): Before Your Child's Test."
Current as of:
August 12, 2016
Adam Husney, MD - Family Medicine
© 2006-2016 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Care instructions adapted under license by your healthcare professional. If you have questions about a medical condition or this instruction, always ask your healthcare professional. Healthwise, Incorporated disclaims any warranty or liability for your use of this information.