Cancer treatment methods mainly include: surgery is the most commonly used cancer treatment method, especially for early single tumor. After surgery, radiotherapy and chemotherapy for local tumor should be chosen, radiotherapy and chemotherapy have certain killing effect on cancer cells, but the side effects are more obvious. This can reduce the toxicity of radiotherapy and chemotherapy, which is beneficial to the repair of the body and can also reduce the pain of patients. In addition, immunotherapy can also be chosen for thyroid tumor.