Lung cancer is one of the malignant tumors with the highest incidence rate in China, and its mortality rate is relatively high, so once suffering from lung cancer, one should actively cooperate with the treatment. Surgery is one of the main treatment methods for lung cancer patients, which has better effect on removing and controlling the lesions. Then what should patients who have been treated by surgery pay attention to after being discharged from hospital? 1. Follow the doctor’s discharge instructions and precautions carefully, especially the time of follow-up treatment. Generally speaking, the post-surgery adjuvant radiotherapy should be started within 1-2 months after surgery; 2. Prevent colds. Because you have just had surgery, if you catch a cold at this time, you may develop viral pneumonia; 3. Moderate exercise. Because 1-2 months after surgery is the rapid recovery period, moderate exercise can promote recovery. The principle of exercise is to the extent that the body can withstand, do not force. The amount of exercise should follow the doctor’s instructions and increase gradually; 4. Be alert to possible long-term complications. If moderate to severe fever (more than 38.5 degrees), or a larger amount of coughing up sputum, or sputum with a noticeable foul smell, or a noticeable shortness of breath occurs during the recovery period after discharge from the hospital, you should contact the surgeon in time and return to the hospital to complete the relevant examinations; 5. To return to the hospital for review at regular intervals. Generally speaking, if there is no subsequent radiotherapy for patients after surgery, they are required to be rechecked every 3 months in the first year, every half a year from the second to the third year, and can be rechecked every year after three years. Doctor’s tip: Although the morbidity and mortality of lung cancer are relatively high, it is not incurable. Surgery patients must follow the discharge instructions and precautions, keep an optimistic and cheerful mindset, set up confidence in fighting the disease, correctly treat their condition and side effects during the follow-up treatment, and actively cooperate with the treatment, which will help the patients recover better after the surgery.