Lung cancer in people over 70 years old should be treated according to their physical condition. If the health condition is good and able to do surgery, surgery can be an option at age 70. If the health condition is not good and cannot tolerate surgery, stereotactic radiotherapy should be performed. If you are in advanced stage, you can decide the next treatment according to the pathological type, such as non-small cell lung cancer, which is divided into two major pathological types: lung adenocarcinoma and squamous carcinoma. Lung adenocarcinoma depends on whether there are genetic mutations, if there are genetic mutations, you can choose targeted drugs, while without genetic mutations, you can only choose chemotherapy drugs. The main treatments for squamous lung cancer are chemotherapy, radiotherapy and immunotherapy, while most small cell lung cancers can only choose chemotherapy, immunotherapy or simultaneous radiotherapy and chemotherapy.