Definition X rays are electromagnetic radiation that differentially penetrates structures within the body and creates images of these structures on photographic film or a fluorescent screen. These images are called diagnostic x rays.

Purpose Diagnostic x rays are useful in detecting abnormalities within the body.
They are a painless, non-invasive way to help diagnose problems such as broken bones, tumors, dental decay, and the presence of foreign bodies.

Risks Low dose exposure to x rays creates minimal cell damage and minimal risk when x rays are performed in an accredited facility.
There is an increased risk that a developing fetus will develop leukemia during childhood if exposed to x-ray radiation; pregnant or potentially pregnant women should avoid x rays.

There is also a slight risk of an allergic reaction to the contrast material or dye used in certain x rays.