Pain in the middle of the back, especially pain in the posterior median, is usually the spine, which is right in the posterior median, and why it causes pain, such as pain in the neck and shoulders, most commonly cervical spondylosis. If there is no clear trauma, pain caused in the lumbar region, the biggest possibility is lumbar disc herniation or spinal stenosis, not completely ruled out there is also coronary heart disease, such as acute myocardial infarction, coronary acute syndrome, can cause pain in the middle of the back. The manifestations of coronary heart disease and myocardial infarction attacks include pain in the forehead and back, as well as radiating pain in the left shoulder, left arm or even the little finger of the left hand and jaw. Take aspirin or clopidogrel as soon as possible, call the emergency center, and go to the hospital in time for consultation.