Radiation therapy is one of the most popular methods of breast cancer treatment, however it has evolved tremendously over the years.Radiation is designed in two different types: external or internal.Radiation treatments that are external are done using a highly focused, high energy beam of light utilized to annihilate cancer cells and their surrounding tissue.

The beam of light can not be seen with your eyes but it can pass through your skin because it is semi-transparent. Cancer cells are composed differently, therefore they react differently to treatments. Healthy cells that are located within the path of the radiation are affected by it. As cancer cells actively divide and grow in abnormal ways the way they function is easily interrupted.

They could potentially absorb a greater percentage of radiation than healthy cells do. The energy works to kill the cancer cells. The beam also aids in destroying the blood vessels generated by the cancer to feed itself. These vessels are located around the tumor.