Back pain may be caused by coronary heart disease, costochondritis, myocarditis and other diseases. 1. Coronary heart disease: due to the existence of serious lesions in the coronary arteries, the blood supply and oxygen supply can not be timely and adequate supply, which may lead to insufficient blood supply to the myocardium, and may cause pain in the fossa of the heart, and the pain may be radiated to the back, which may lead to the phenomenon of fossa of the heart pain in the back pain. 2. Costochondritis: due to trauma, chronic strain and other factors, resulting in infection of the costochondral cartilage, there may be obvious pain in the fossa of the heart. Sometimes the pain is so severe that it radiates to the back. 3. Myocarditis: due to viruses, bacteria or drugs, caused by myocardial infection, common symptoms include pain in the fossa of the heart, and the pain can be radiated to the back, which leads to the phenomenon of pain in the fossa of the heart and the back of the patient. When you have pain in the fossa of the heart and pain in the back, and the symptoms are not relieved for a long time, you should go to the hospital in time to find out the cause of the disease, and carry out the treatment after clarifying the cause of the disease.