Useful websites


Jargon buster


Childrens Services

MCUG for children

MCUG - The Wee Wee TestShow [+]Hide [-]

This test is done to give us information about your child's bladder. The test involves passing a small tube into the bladder. The x-ray contrast, which is used to take pictures of the bladder, is run in through this tube.


The test takes about 30 minutes. It is done to show the bladder and urethra (its outlet tube), and to see if urine goes backwards from the bladder (reflux), or if there is a blockage.

Passing the tube is a little uncomfortable and for older children can be embarrassing. Once inside it is hardly felt. X-ray pictures are taken while the bladder fills up with fluid (contrast) and during emptying.

More information 

You can get more information about the test on the NHS Choices website.

You can also download a PDF leaflet to help explain the test to your child.


After the test some children may sting a little when they wee. Drinking plenty of fluid and a warm bath will both help. If the problem persists do not hesitate to contact your GP or the Children’s Day Unit on 0191 282 5005.

There is a small risk of developing a water infection, if this happens please contact your GP or the Children’s Day Unit on 0191 282 5005 For further information between 9.00am - 5.00pm, Monday - Friday please contact Liz Hunter, Judith Hobson or any radiographer on 0191 282 4426.


The results of this examination will be sent to your child's hospital consultant in the next 7-10 days, and s/he will contact you, either by appointment or letter. 

© Copyright Newcastle upon Tyne Hospitals NHS Foundation Trust 2020 Site by TH_NK