There is no clinical statement about how many times of chemotherapy is best for lung adenocarcinoma, and most patients need chemotherapy 4 to 6 times or even more. Lung adenocarcinoma is a type of lung cancer. When the cancer cells metastasize outside the chest, when the tumor cannot be removed in the limited advanced stage, or when distant metastasis occurs after surgery, it may be necessary to cooperate with the doctor for chemotherapy in order to kill the cancer cells and control the progress of the disease. For patients with early clinical staging, the number of chemotherapy treatments may be around 4 times. However, for patients with late clinical staging and high risk factors, the number of chemotherapy sessions may be around 6 or even more. Since chemotherapy drugs also cause damage to the normal cells of the body, patients may experience adverse reactions such as hair loss, nausea and vomiting, loss of appetite, and bone marrow suppression. In addition to chemotherapy, some lung adenocarcinoma patients can also cooperate with doctors in molecular targeted therapy and immunotherapy in order to improve the survival rate. Lung adenocarcinoma patients are advised to adjust their mindset, actively cooperate with doctors and pay attention to regular medical checkups. They should pay attention to the rationality of diet, eat more fresh fruits and vegetables and less smoked food, and quit drinking and smoking.