Tests and scans
An x-ray is a test that uses small amounts of radiation to take pictures of the inside of your body. They are a good way to look at bones and they can show changes caused by cancer or other medical conditions. X-rays can also show changes in other organs, such as the lungs.
You usually have x-rays in the imaging department of the hospital, taken by a radiographer.
An x-ray is a safe test for most people but like all medical tests it has some possible risks. Your doctor and radiographer make sure the benefits of having the test outweigh these risks.
The amount of radiation you receive from an x-ray is small and doesn't make you feel unwell.
The risk of the radiation causing any problems in the future is very small. The benefits of finding out what is wrong outweigh any risk there may be from radiation.
Talk to your doctor if you are worried about the possible effects of x-rays.
It is very important to tell your doctor or radiographer if you are pregnant or think you may be pregnant. X-rays could affect your developing baby.
You should get your x-ray results within 1 to 2 weeks. Contact the doctor who arranged the test if you haven’t heard anything after a couple of weeks.
Waiting for test results can be a worrying time. You might have the contact details of a specialist nurse who you can speak to for information and support if you need to. It may also help to talk to a close friend or relative about how you feel.
Last reviewed: 23 May 2025
Next review due: 23 May 2028
Search for the cancer type you want to find out about. Each section has detailed information about symptoms, diagnosis, treatment, research and coping with cancer.
Find out about tests to diagnose cancer and monitor it during and after treatment, including what each test can show, how you have it and how to prepare.
A CT scan is a test that uses x-rays and a computer to create detailed pictures of the inside of your body. Find out how you have it and what happens afterwards.
A mammogram is an x-ray of your breasts. This test is used to help diagnose breast cancer and other breast conditions.
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