radiation therapy is usually given to treat breast cancer after a lumpectomy and sometimes after a mastectomy to reduce your risk of the cancer returning in that breast. the radiation treatments generally start several weeks after the surgery so the area has some time to heal. if your doctor recommends chemotherapy along with radiation therapy this might be given before you start radiation therapy. once radiation treatments start you can expect to receive small daily doses of radiation over a period of several days to several weeks.
when is radiation therapy given for breast cancer?