Lung adenocarcinoma 1A2 has a low chance of recurrence after surgery. Lung adenocarcinoma 1A2 is classified according to the international TNM staging standard, and the patient still belongs to the early stage, and the cancer cells have not metastasized or spread, so the patient can recover from the operation by taking radical surgery to remove the tumor or expanding the resection, and the cure rate can reach more than 95%, and the chances of recurrence in the later stage are relatively low. Of course, there is still a possibility of recurrence, therefore, it is necessary to go to the hospital three months after the operation for regular review of CT, tumor markers, and so on, and once the recurrence phenomenon is detected, then take targeted treatment to control the condition and prolong the survival period.