Back pain of the heart may be caused by acute myocardial infarction, aortic dissection, pulmonary embolism, intercostal neuritis, ankylosing myelitis and other diseases. 1. Acute myocardial infarction: it is a cardiac emergency in which the coronary arteries of the heart are blocked and the blood supply is insufficient, leading to myocardial necrosis and injury. At the onset of the disease, heart pressure-like pain can occur, and some patients may have back pain, left arm pain and other symptoms. 2. Aortic coarctation: It is a serious cardiovascular disease caused by blood entering the middle layer of the aorta to form a hematoma. Cutting pain in the heart can occur, and the pain can radiate to the back, left shoulder, left back and other locations. 3. Pulmonary embolism: It is a disease caused by the obstruction of pulmonary artery or its branches by thrombus, fat, amniotic fluid and other embolus, and there may be heart pain, back pain, dyspnea or hemoptysis and other symptoms during the attack. 4. Intercostal neuritis: a variety of causes of intercostal nerve innervation area of the pinprick-like severe pain, often back to the chest distribution of pain, in coughing or deep inhalation. The pain can be aggravated when exhaling. 5. Ankylosing myelitis: a chronic inflammatory disease that occurs in the spine and other parts of the spine, mostly seen in young adults, the onset of the onset of the stiffness of the lower back, pain and other symptoms. If the pain in the back of the heart is not relieved even after rest, or has a tendency to worsen, it is recommended to go to the hospital in time to follow the doctor’s instructions for treatment.