Radiotherapy is not the last step in cancer treatment. At present, cancer is often treated by radiotherapy, chemotherapy, surgery and other means of integrated treatment. Radiotherapy is often used for preoperative or postoperative adjuvant treatment, as well as radical radiotherapy for patients who are not suitable for surgery, but it does not have to be the last step of cancer treatment. Radiotherapy, or radiation therapy, is a local treatment method that uses radiation to kill cancer cells, and is one of the main means of treatment for malignant tumors. If it is preoperative radiotherapy, surgery should be carried out after radiotherapy reaches the expected effect; if it is postoperative radiotherapy, it can also be combined with chemotherapy, targeted drugs or immune drugs and other treatments. Patients are advised to keep a good attitude and actively cooperate with doctors to get a better prognosis.