Chest pain is a common symptom and can be caused by many factors, including lesions of the chest wall, pleura, lungs, cardiovascular vessels, mediastinum, esophagus, and diaphragm. In addition, intercostal neuropathy also often causes chest pain. Therefore, it is difficult to make a diagnosis, and it is often necessary to differentiate and distinguish according to the nature of chest pain, the accompanying symptoms and the location and time of occurrence. The following are some common disorders that cause chest pain: chest wall disorders are mainly caused by lesions of the chest wall muscles, ribs or intercostal nerves, and the main characteristic is that the pain is often fixed at the lesion site and there are many obvious local pressure points. For example: 1, intercostal neuralgia, the site of the intercostal nerve towards the tingling sensation, coughing, breathing will be aggravated. 2, chest pain caused by rib fracture, there is a clear history of injury or long-term history of severe cough, painful local pressure pain, more obvious when squeezed. 3, chest pain caused by herpes zoster in the chest and abdomen, local blisters can appear, and the pain is generally not related to coughing and breathing. Tracheal, bronchial, lung and pleural disorders The main feature is that pain is often associated with breathing and coughing. For example: 1, chest pain in spontaneous pneumothorax is sudden, accompanied by dyspnea, cough, breathlessness, and even serious conditions such as cyanosis and shock. 2.In the case of pleurisy, it is stabbing pain, which is most prominent in the rib area where the chest expands the most. 3.Chest pain in tracheitis and bronchitis is significantly worse when coughing and breathing, accompanied by a burning sensation in the chest. 4.Pulmonary diseases such as pulmonary infarction, the pain is mostly confined to the diseased area and may appear as knife-like pain, which is aggravated by breathing, coughing and activity. Circulatory system disorders Common diseases include coronary heart disease, pericarditis, etc. 1, angina attack is characterized by a sense of strangulation, pressure or fear in the left anterior chest or behind the sternum, the attack is usually about 30 seconds, and can be relieved with coronary vasodilator drugs. 2, myocardial infarction caused by chest pain, in addition to the above performance can also be radiated in the left shoulder, the left inner arm, and sometimes can also be radiated to the chin, neck, and even the upper abdomen, the pain has a sense of constriction, the pain is intense, the time continues to extend more than 30 minutes, taking coronary vasodilator drugs, the effect is not significant. At the same time, there can be arrhythmia and other manifestations. 3, pericarditis, pain sometimes very similar to myocardial infarction, but in coughing, breathing and position change, left side lying aggravated, and the pain lasts a long time, can not be relieved with coronary vasodilator drugs. Digestive system disorders 1, cholecystitis, cholelithiasis caused by chest pain to the right lower chest or right back, chest, abdomen, the nature of pain to colic, save pain is common, accompanied by nausea, vomiting and abdominal distension abdominal pain. 2, acute pancreatitis can cause pain in the heart fossa, left chest wall, epigastrium and lumbar region, with transverse circumferential waist-like pain, fat gastrointestinal symptoms, not relieved by coronary vasodilating drugs. 3, In addition, gastric and duodenal diseases may also cause pain in the lower anterior chest, but generally have gastrointestinal symptoms .