Patients with shortness of breath after radical lung cancer surgery usually need to inhale oxygen, reduce the activity level, and improve the examination to find out the cause of the disease. 1. Oxygen intake: Generally, timely oxygen intake can temporarily relieve shortness of breath after radical lung cancer surgery. 2. Reduce activity: if the shortness of breath after radical lung cancer surgery is caused by large amount of activity, it will be better if the activity is reduced, and the patient should not be agitated and should not do strenuous exercise. 3. Improve examination: patients with shortness of breath after radical lung cancer surgery should do relevant examination and deal with it according to the situation of examination, and common examination items include oxygen saturation examination, CT, tumor marker, blood routine and other relevant examinations. Patients with shortness of breath after radical lung cancer treatment should consult doctor in time, do not treat themselves to avoid bad results, and follow standardized treatment under the guidance of doctor’s consultation.