The vague pain in the mouth of the heart after stenting is not normal, there may be coronary artery spasm or small blood vessel occlusion, and should be given medication to dilate the coronary artery and other treatments. Post-stenting pain in the heart may be related to the stent stimulation of blood vessels, coronary artery stimulation can occur after vasospasm, resulting in myocardial ischemic episodes, the use of coronary artery dilation of medication as prescribed by the doctor, such as isosorbide nitrate. After stenting, there is a hidden pain in the heart, and may be related to stent implantation, the implantation of stents can expand the larger blood vessels, at the same time, the smaller branches may cause compression, resulting in vascular ischemia, and may even cause the occlusion of small blood vessels, continue to comply with the doctor’s instructions to give antiplatelet lipid-lowering and expanding the crown and other therapies, such as aspirin, reserpinevastatin, isosorbide nitrate and other medicines, the symptom will be gradually relieved. Hidden pain after stenting, we should pay attention to review the electrocardiogram, under the guidance of the physician to give timely treatment, the symptoms are particularly obvious, if necessary, review the coronary angiography, to prevent the formation of thrombus in the stent.