How does radiation therapy work?

How does radiation therapy work?

Radiation therapy destroys cancer cells by directing a high-energy beam to the cancer site with minimal harm to the healthy cells. Radiation therapy is a very common treatment for cancer. It is important to remember that radiation does not affect cancer cells right away and is dependent on the type of tumor.  It takes days or weeks of treatment before cancer cells deteriorate. Also, radiation continues to affect cancer cells after radiation treatments are complete. Radiation treatments are given daily, Monday-Friday, for a period of time prescribed by your doctor, the radiation oncologist.

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