Radiation therapy is a way to treat cancer. External beam radiation comes from a machine outside of the body. Short bursts of x-rays are aimed at tumors inside the body.
Radiation may be used to treat problem areas if chemotherapy does not work. It may be used to:
Radiation can also be used to ease bone pain. But, it can also cause more damage to the bones and bone marrow. This treatment may not be helpful for everyone.
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Last reviewed March 2019 by EBSCO Medical Review Board Mohei Abouzied, MD, FACP Last Updated: 5/2/2019