Radiation Therapy Principles

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Radiation Therapy Principles

Radiation and radioactivity were discovered more than 100 years ago. Since then, radiation has become important in cancer treatment. More than half of all people with cancer will get radiation as at least part of their cancer treatment.

Here we will help you understand what radiation therapy is, how it’s used to treat cancer, and what some of its common side effects are. For more detailed information on the possible side effects of radiation and how to deal with them, please see our document Understanding Radiation Therapy: A Guide for Patients and Families.

Last Medical Review: 10/23/2013
Last Revised: 10/23/2013