Chest and back pain may be caused by coronary stenosis, acute pericarditis, aortic coarctation, mediastinal tumor and so on. 1. Coronary artery stenosis: Coronary artery stenosis refers to the narrowing of coronary arteries caused by coronary atherosclerosis, and patients will experience palpitations, chest tightness, shortness of breath, dyspnea, and so on, and in severe cases, they may suffer from chest pain, nausea, vomiting, and even dizziness, coma and other symptoms. 2. Acute pericarditis: Acute pericarditis is a syndrome caused by acute inflammation of the pericardium’s dirty layer and wall layer, which will cause chest pain, back pain, dyspnea, and chills. 3. Aortic coarctation: Aortic coarctation means that the blood in the aortic cavity enters into the middle membrane of the aorta from the tear of the inner membrane of the aorta, which separates the middle membrane and expands along the direction of the long axis of the aorta to form the separation of true and false chambers of the aortic wall, and the patients will have tearing pain in the chest and back accompanied by high blood pressure. 4. Mediastinal tumor: mediastinal tumor invades the peripheral nerves, which can lead to chest and back pain symptoms, often manifested as boring pain. When patients have chest and back pain, they should go to the hospital in time for corresponding examination to clarify the cause of the disease and take active treatment.