Chest pain in the middle of the back may be related to coronary heart disease, lung disease, gallbladder disease and other reasons. 1. Coronary heart disease: when suffering from coronary heart disease, strenuous exercise, emotional excitement and other reasons can make the myocardial oxygen consumption increase, narrow coronary arteries lead to the blood supply to the heart is impeded, an imbalance between the demand for oxygen and the supply of oxygen, which causes the anterior region of the heart, the middle of the chest pain, chest tightness, the pain can be radiated to the back. 2. Lung diseases: such as pneumonia, pleurisy and other diseases, can also cause pain in the middle of the chest and back, related to the inflammation of the pleura. 3. Gallbladder diseases: such as acute cholecystitis, inflammation repeatedly stimulates the mucous membrane of the gallbladder, resulting in inflammation of the gallbladder wall. When eating greasy food and high protein food, cholecystitis is easily induced, resulting in pain in the right upper abdomen under the raphe, which may radiate to the back and right shoulder blade, accompanied by nausea, vomiting and other symptoms. 4. Others: Costochondritis, for example, can also lead to symptoms of back pain in the middle of the chest. Chest pain in the middle with back pain can also be seen in other diseases, it is recommended that patients go to the regular hospital in a timely manner, so as to avoid delaying the condition.