Method 1: Surgery. Early stage lung cancer is mostly treated by radical resection, which means the primary cancer and its metastatic lymph nodes are completely removed, and the lymph nodes are completely cleared and the stumps of bronchial tubes are free of cancer cells under the microscope.

Method 2: Chemotherapy. Chemotherapy is a kind of treatment that uses chemicals to kill tumor cells, inhibit the growth and reproduction of tumor cells, and promote the differentiation of tumor cells. It is a kind of systemic treatment that has therapeutic effect on primary foci, metastatic foci and subclinical metastatic foci.

Method 3: Radiation therapy. Radiotherapy uses high-dose rays produced by special equipment to irradiate cancerous tumors, kill or destroy cancer cells, and inhibit their growth, reproduction and proliferation. Although this method can destroy the normal cells of the human body to a certain extent, most of the cells can still be restored, and unlike chemotherapy, radiotherapy only affects the tumor and its surrounding areas, and does not affect the whole body.