The cure rate of stage 1a2 lung adenocarcinoma after surgery is high, usually can reach about 90%, but the details still need to be determined according to the patient’s recovery situation and individual physique, so it cannot be generalized. Stage 1a2 lung adenocarcinoma usually has tumor diameter greater than 1cm and less than or equal to 2cm, with clear surgical signs and no obvious metastasis in lymph nodes and distant organs, so if the patients are treated in time, have proper postoperative care without obvious complications, and actively cooperate with doctors to carry out post-chemotherapy and radiotherapy, the cure rate can usually reach about 90%. However, if the patient does not cooperate with the doctor’s treatment, or if the individual’s physical condition is poor, and the postoperative recovery is slow, the cure rate may be reduced. It is recommended that patients should be detected and treated early, and go to the hospital regularly for rehabilitation checkups after the surgery, which can help their condition recover.