After the recurrence of lung adenocarcinoma, it can still be treated and should be treated according to the specific condition after the recurrence. After the recurrence of lung adenocarcinoma, it is necessary to formulate the treatment plan according to the specific recurrence situation and the patient’s physical condition. If the recurrence is limited and the patient’s physical condition is good, surgical resection can be performed, followed by radiotherapy, chemotherapy, targeted therapy, immunotherapy and other comprehensive treatments. If the disease develops faster and the patient’s physical condition is poor, the patient should actively cooperate with the doctor’s treatment, and appropriate non-surgical methods such as radiotherapy, chemotherapy and immunotherapy can be carried out to control the development of the lesion, so as to prolong the patient’s survival period. Therefore, if lung adenocarcinoma recurs, patients should go to hospital in time and actively cooperate with professional doctors for treatment.