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How does a chest x-ray work?

During a chest x-ray, a beam with a small amount of radiation is directed through the chest. The radiation that passes through the body is recorded on film or by a computer. Tissue such as the lungs doesn’t absorb much radiation, and those areas appear darker on the x-ray image. Bones, which absorb a lot of radiation, appear white in the image.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.