For male patients who have vague chest pain: first, to consider high-risk chest pain, such as acute coronary syndrome, aortic coarctation, tension pneumothorax, pulmonary embolism, although the incidence of these cases is low, but the severity is high, and the mortality rate is relatively high. Second, to consider the cardiac origin of the disease, in coronary heart disease unstable angina, malignant arrhythmia, acute heart failure or acute myocarditis, these cases will also have vague chest pain. Third, for the respiratory system diseases, such as large lung infections caused by various factors, acute bronchitis, acute bronchial dilatation, pleural effusion, at this time will also have the above symptoms. Fourth, for diseases of the chest wall, intercostal neuralgia is common. Fifth, there is also herpes zoster pain, which will also give male patients the clinical manifestation of hidden pain in the chest.