There are various causes of chest pain, such as cardiovascular disease, respiratory disease, trauma or breast disease, etc. One should hang up with different departments according to the specific underlying disease as well as the clinical symptoms: Emergency Department, Cardiology, Respiratory Medicine, Thoracic Surgery, Breast Surgery and so on. 1. Emergency Medicine or Cardiology: If you are over 40 years old, have previous cardiovascular diseases such as coronary heart disease, hypertension, diabetes, etc., and experience chest pain after emotional excitement, exertion, or being wet in the rain, it is recommended that you go to the Emergency Medicine Department or the Cardiology Department. 2. Respiratory medicine: If there is a history of cold and flu, bronchial asthma, pulmonary heart disease, etc., and the chest pain is accompanied by cough, sputum, dyspnea and other symptoms, it may be a respiratory disease, and it is recommended to go to the Department of Respiratory Medicine for consultation. 3. Thoracic Surgery: If the chest has been traumatized, such as being hit, falling, fighting, etc., and the location of the chest pain is clearer, it is recommended to go to Thoracic Surgery. 4. Breast Surgery: If the chest pain is clearly located in the breast and a lump is palpable, it is recommended to go to Breast Surgery.