The word angina is an exotic word that means blockage of the chest and gas shield. Pathophysiologically, angina pectoris is a painful condition that occurs due to an imbalance between myocardial oxygen demand and oxygen supply, due to myocardial ischemia. It is often a feeling of pressure, burning or heaviness behind the sternum, and many patients complain of a stone in the chest rather than that of pain. In general, the sharp pain does not look like angina pectoris. Many patients describe chest discomfort as “angina pectoris”, which is obviously not accurate. Li Chongjian, Department of Cardiovascular Medicine, Fu Wai Hospital, Beijing, China The following conditions are generally not true angina pectoris in the sense of coronary heart disease. (1) sharp or pins-and-needles pain; (2) throbbing pain; (3) very brief pain of only a few seconds; (4) pain for a long time ≥ half an hour, unless it is an acute myocardial infarction, or load factors persist, such as tachycardia (especially paroxysmal tachycardia); (5) discomfort due to eating or sitting at rest, but not due to exertion or lying down; (6) chest pain relieved by exertion; (7) chest pain without chest pain during brisk walking but mild or moderate chest pain caused by using the upper arm, especially lifting up; (8) chest pain caused or aggravated by deep inspiration; (9) tenderness at the site of pain; (10) many other symptoms along with chest pain, such as panic, shortness of breath, vertigo, exhaustion, etc. Angina pectoris is a symptom that does not equal coronary atherosclerotic heart disease, so it should be carefully diagnosed in conjunction with the patient, especially with reference to the characteristics of medical history, gender, age, family history, lifestyle habits and other risk factors for coronary heart disease, physical examination, laboratory tests and electrocardiogram. Learning.com Reprinted with permission