X-ray

What it involves

An X-ray is a quick imaging test that uses a small amount of ionising radiation to produce pictures of the bones and some other structures. It is commonly used to look at fractures, joints, the chest and the teeth. A radiographer takes the images, and a doctor, often a radiologist, interprets them.

Who it is for

It is for people whose doctor needs to look at bones or the chest, for example after an injury or with a cough or joint pain. The doctor weighs the benefit of the image against the radiation exposure, and tells you if you are pregnant or may be pregnant before the test.

How long it usually takes

The exposure takes a fraction of a second, and the whole visit is normally brief, with several images taken at different angles.

What to expect

You may be asked to remove jewellery or metal objects, to change into a gown and to hold still in set positions. The test itself does not hurt, though positions can be uncomfortable with an injury. Staff step behind a screen when images are taken.

Aftercare

There is no aftercare. Ask how the images will be reported and how you will receive the results. Tell staff if you have had recent X-rays to avoid repeats.

When to seek it

A doctor may request an X-ray after an injury or for persistent symptoms. A suspected fracture needs prompt assessment. Tell staff in advance if you could be pregnant.

What affects the cost

Cost depends on the body area, the number of views, digital or film equipment and whether a specialist report is included. HealthNaro shows a price only where a clinic has supplied a figure with a source and date.

Read more in our guide: X-ray, ultrasound, CT and MRI scans: how they differ and what to expect.

This page is general information and not medical advice. In an emergency, contact your local emergency number.

Sources: NHS; World Health Organization; fda.gov.