X-ray radiation therapy is a medical treatment that uses high-energy X-rays to target and destroy cancer cells. This therapy works by damaging the DNA of the cancer cells, which prevents them from growing and dividing. It is often used to treat various types of cancer, either alone or in combination with other treatments like surgery or chemotherapy. During the procedure, a machine called a linear accelerator directs the X-rays precisely at the tumor while minimizing exposure to surrounding healthy tissue. Patients typically undergo multiple sessions, and the treatment is usually painless, although some may experience side effects like fatigue or skin irritation.