About 70% of tumor patients need to receive radiation therapy during their treatment, and almost all malignant tumors in all parts of the body may need radiation therapy. 1.Head and neck tumors: nasopharyngeal cancer, tongue cancer, other oral cancers, malignant tumors of nasal cavity, septal sinus cancer, malignant tumors of maxillary sinus, tonsil cancer, laryngeal cancer, malignant tumors of salivary gland, cancer of external ear and middle ear, eye tumors, thyroid cancer. 2.Thoracic tumors: lung cancer (small cell lung cancer, non-small cell lung cancer), lung metastases, mediastinal tumors, chest wall and pleura tumors, esophageal cancer, cardia cancer, breast cancer. 3.Abdominal malignant tumors: stomach cancer, colon cancer, rectal cancer, pancreatic cancer, liver cancer, biliary tract cancer. 4.Urological tumor: kidney cancer, bladder cancer, prostate cancer, testicular malignant tumor, penile cancer. 5.Female reproductive system tumors: cervical cancer, endometrial cancer, ovarian malignant tumor, malignant trophoblastic tumor, vulvar and vaginal cancer. 6.Tumors of central nervous system: glioma, medulloblastoma, germ cell tumor, malignant lymphoma, deep brain tumor or major functional area tumor, brain metastasis. 7.Malignant tumors of hematopoietic system: Hodgkin’s lymphoma, non-Hodgkin’s lymphoma, plasmacytoma, mycosis fungoides, multiple myeloma, leukemia. 8.Soft tissue tumor: soft tissue sarcoma. 9.Primary bone malignant tumors: osteosarcoma, Ewing’s tumor, giant cell tumor of bone, lymphoma of bone, chordoma, fibrosarcoma of bone, vertebral hemangioma, Langerhans’ histiocytic proliferation disease. 10.Skin cancer: basal cell carcinoma, malignant melanoma. 11.Treatment of metastases: bone metastases, brain metastases, liver metastases, lung metastases and lymph node metastases. 12.Some benign tumors or non-tumor diseases: keloid, liver and bone hemangioma, intracranial arteriovenous malformation, etc.