Possible causes of chest pain in men include chest wall diseases, respiratory diseases, cardiovascular diseases, mediastinal diseases and so on. 1. Chest wall diseases: including herpes zoster, intercostal neuritis, costochondritis, leukemia or multiple myeloma infiltration of the sternum, chest trauma and so on. 2. Respiratory diseases: including lobar pneumonia, lung abscess, lung cancer, pleurisy, pneumothorax, pulmonary embolism, etc. 3. Cardiovascular diseases: including angina pectoris, acute myocardial infarction, cardiomyopathy, aortic stenosis, acute pericarditis, aortic coarctation and so on. 4. Mediastinal diseases: including mediastinal inflammation, tumor, esophageal hiatal hernia, esophagitis, esophageal cancer and so on. Men with chest pain symptoms should be given enough attention, especially acute myocardial infarction, pulmonary embolism, aortic coarctation and other diseases belong to the acute and critical diseases, if not treated in time is likely to cause sudden death of the patient, it is recommended that the patient go to the hospital as soon as possible to find out the cause of the corresponding treatment as soon as possible.