Angina pectoris is the most common symptom of coronary heart disease, and is often characterized by pressure-like pain in the precordial region, holding pain and burning pain. People often think that angina is the pain in the precordial region, but it is not. I once met a middle-aged man with a history of hypertension and long-term smoking, and his main symptom was toothache, which usually occurred when walking or working. I first admitted the patient to the hospital and performed a coronary angiogram, which revealed a 90% stenosis of the most important blood vessel and implanted a stent. Why does angina pectoris cause toothache? It is due to the large amount of metabolites produced by myocardial ischemia strongly stimulating the nerve endings, and these visceral nerves transmit abnormal signals from the heart to the spinal cord center, however, the organs corresponding to the efferent nerves are not specific, and the vast majority of them will conduct to the chest, leading to chest pain, and also some of the nerve impulses will lead to tooth, jaw and shoulder back pain along other efferent nerves, which is what we often call “radiating pain”. So what we often call angina is just a symptom to describe the manifestation of coronary heart disease, but patients with coronary heart disease do not only experience pain in the precordial region. All patients please remember that if you have toothache, you can first go to dentistry to clarify the presence of oral disorders, but you should also be alert to the possibility of angina pectoris if the toothache symptoms, which are related to activity, exertion, emotional excitement, etc., and each attack does not exceed 20 minutes, can be relieved by rest or containing nitroglycerin, and the relief by taking painkillers is not obvious, you must be alert to the possibility of angina pectoris, of course, if you are not sure Of course, if you are not sure, you can go to the hospital cardiology clinic to seek the help of a specialist, timely detection of hidden heart problems, early treatment, to avoid adverse cardiovascular events.