Lung adenocarcinoma is more serious in advanced stage. Lung adenocarcinoma belongs to malignant tumor of lung, and its condition in late stage is more serious, which may include cough, hemoptysis, chest tightness, chest pain, low fever, pleural effusion and so on. If the tumor presses the trachea, it may cause respiratory difficulty, and if it presses the superior vena cava, it may cause neck and face edema, and the condition progresses faster if it is not controlled in time. If the disease is not controlled in time, the condition will progress faster. The treatments for advanced lung adenocarcinoma include drug treatment, radiotherapy, etc. Commonly used drugs include platinum drugs or targeted drugs, and radiotherapy and chemotherapy can be carried out at the same time if there are indications for radiotherapy, so the use of drugs should be in accordance with the doctor’s instruction. As the tumor consumes a lot, patients need to maintain balanced nutrition and ensure sufficient nutrition. Patients with advanced lung adenocarcinoma are recommended to seek medical treatment in time and accept standardized treatment actively to improve the quality of life and prolong the survival period.