Emphysema does not cause chest pain, but the following three conditions can also occur chest pain, need to pay close attention to: First, emphysema patients if combined with pulmonary blisters, during strenuous exercise led to the rupture of pulmonary blisters to form a spontaneous pneumothorax, which can cause sudden chest pain, accompanied by dyspnea. Especially long-term smoking elderly patients with chronic obstructive pulmonary emphysema, easy to form pulmonary blisters, once ruptured after the formation of spontaneous pneumothorax will lead to chest pain, chest X-ray can confirm the diagnosis. Second, chest pain, especially the left side of the chest pain, should also be alert to whether the cardiovascular disease. Elderly people, long-term smokers, obese patients, with hypertension, diabetes, if chest pain need to be given an electrocardiogram. See if the ECG suggests myocardial ischemia or myocardial infarction, etc., and observe closely to avoid missed diagnosis and misdiagnosis. Third, if emphysema patients are combined with early lung cancer, they are also prone to chest pain, which should not be taken lightly. When chest pain occurs due to the above conditions, chest CT and ECG should be performed as soon as possible to avoid missed diagnosis and misdiagnosis.