Early-stage lung cancer is not fine as long as it is resected, but there is still a possibility of recurrence. Early stage lung cancer has small lesions, radical surgery is the best solution, and most patients can remove the lesions and cancer cells through surgery, but it does not mean that the resection is fine, there may be potential cancer cells, and there is a certain chance of recurrence and metastasis in the later stage. After surgery, early stage lung cancer patients need to undergo pathological biopsy to determine the degree of malignancy, metastasis, etc. If the differentiation is low, or there is an invasion of the surrounding tissues, they need to undergo a period of adjuvant radiotherapy and chemotherapy to completely remove the residual cancer cells and reduce the chance of recurrence in the later stage. In addition, it is also necessary to pay attention to the postoperative regular review according to the clinician’s opinion, and dynamically observe the changes of the condition.