X-ray
How X-rays work
X-rays are a type of Radiation that can pass throughthe body. They can't be seen by the naked eye and you can't feel them.
Asthey pass throughthe body, the energy from X-raysis absorbed at different rates by different parts of the body.A detector on the other side of the body picks up the X-rays after they've passed through and turns them into an image.
Denseparts of your body that X-rays find it more difficult to pass through, such as bone, show up as clear white areas onthe image. Softer parts that X-rays can pass through more easily, such as your heart and lungs, show up as darker areas.
Medically Reviewed by a doctor on 21 Dez 2018
Introduction
Read about how X-rays work, why they're used, what happens before, during and after an X-ray, and what the risks are.
How X-rays work
X-rays are a type of Radiation that can pass throughthe body. They can't be seen by the naked eye and you can't feel them. Asthey pass throughthe body, the energy from X-raysis absorbed at different
When X-rays are used
X-rays can be used to examine most areas of the body. They're mainly used to look at the bones and joints, although they're sometimes used to detect problems affecting soft tissue, such as internal or
Preparing for an X-ray
You don't usually need to do anything special to prepare for an X-ray. You can eat and drink as normal beforehand and can continue taking your usual medications. However, you may need to stop taking
Having an X-ray
Duringan X-ray, you'll usually be asked to lie on a table or stand against a flat surfacesothat the part of your body being examinedcan be positioned in the right place. The X-ray machine, which look
What happens after an X-ray
You won't experience any after effects from a standard X-ray and will be able to go home shortly afterwards. You canreturn toyour normal activities straight away. You may have some temporary side eff
Are X-rays safe?
People are often concerned about being exposed to radiation during an X-ray. However,the part of your body being examined will only be exposed to a low level of radiationfor a fraction of a second. G
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