Male patients with chest pain can be diagnosed by registering with the emergency department, cardiology, respiratory medicine, or general medicine. If a male patient has severe chest pain accompanied by profuse sweating and also has unstable vital signs, such as unstable blood pressure or unstable respiratory rate, he should go to the emergency department quickly. After completing all vital signs in the emergency department, the electrocardiogram should be checked quickly, and if acute chest pain or acute coronary syndrome is present, it should be handled according to the process of acute chest pain. If there is a previous history of coronary artery disease and the chest pain has been present for a relatively long time and the symptoms are not obvious, you can go to the cardiology department. If you have chest pain and have recently had symptoms of cough and respiratory infection, you can go to the Department of Respiratory Medicine, or for hospitals that are not tertiary care hospitals, or hospitals that do not have meticulous subspecialties, you can also go to the Department of General Internal Medicine.