The recurrence rate of lung adenocarcinoma T2bN0M0 is not very high. Lung adenocarcinoma T2bN0M0 is based on the international TNM staging standard, which indicates that patients with tumor volume between 3-5 cm and no metastasis to lymphatic system and distal organs, most of them belong to the early stage, and can be resected by radical surgery, and most of the patients can recover after the surgery, and the chance of recurrence in the later stage is not very high; however, it still needs to look at the quality of body and the nursing situation to determine the specifics. Although the recurrence rate of lung adenocarcinoma T2bN0M0 is relatively low, there is still the possibility of recurrence, so it is necessary to do regular checkups, and if the postoperative pathological analysis results show that there is a high risk of recurrence and metastasis, it is also necessary to carry out a period of radiotherapy and chemotherapy treatment.