Back pain caused by cardiovascular stenosis is usually a paroxysmal, squeezing or suffocating sensation. Cardiovascular stenosis mainly refers to the narrowing of the coronary arteries, at this time the blood flow will be reduced, but for the myocardium of the blood supply is relatively stable, in the rest of the time can also compensate for the heart’s activities. But in labor, emotional excitement and other circumstances, may lead to a sudden increase in the load on the heart, resulting in increased heart rate, myocardial tension and myocardial contractility. The heart muscle needs more oxygen to complete the compensatory activity, but the presence of narrowed coronary arteries will not supply enough oxygen, which will cause paroxysms of crushing pain in the back or a feeling of suffocation. This usually lasts from a few minutes to 10 minutes, mostly 3 to 5 minutes, and most do not last more than half an hour. When the above symptoms occur, it is necessary to consult the doctor in time, and under the guidance of the doctor to improve the markers of myocardial damage, electrocardiogram, cardiac ultrasound and other tests, to make a clear diagnosis and then carry out symptomatic treatment. Avoid delaying the best treatment time, which may lead to coronary artery occlusion myocardial infarction life-threatening.