Chest pain usually occurs in angina pectoris, tuberculosis, chest wall diseases and trauma. 1. Angina pectoris: caused by narrowing or occlusion of coronary artery lumen, easily triggered by exertion or emotional excitement, manifested as chest pain, most of which is oppressive pain and tightness in the chest. 2. Tuberculosis: Mycobacterium tuberculosis infection, mainly through respiratory droplet transmission, will appear chest pain, chest tightness, cough and other symptoms, but also can be accompanied by low-grade fever, night sweats, fatigue and other systemic symptoms. 3. Chest wall diseases: such as costochondritis, which occurs in the cartilage at the connection of ribs and sternum, localized swelling, pain, and obvious pain when pressed. 4. Trauma: impact or extrusion can lead to rib fracture, chest pain, chest tightness and other symptoms, coughing or deep breathing pain can be aggravated. Chest pain can also be seen in other diseases, it is recommended that patients go to the regular hospital in time to avoid delaying the condition.