Typical symptoms of angina pectoris in coronary artery disease (usually called the “five elements” of pain): 1, pain site: mainly in the middle or upper part of the sternal body after the anterior region of the heart, there is the size of the palm of the hand, or even across the forehead, the boundaries are not very clear. It often radiates to the left shoulder, the left inner arm up to the ring finger and little finger, or to the neck, pharynx or lower jaw, and upper abdomen. Prevent misdiagnosis as frozen shoulder, stomach pain, toothache, esophagitis, and other diseases. Wang Yongxia, Department of Cardiology, The First Affiliated Hospital of Henan College of Traditional Chinese Medicine 2. Nature of pain: Chest pain is often compressive, stuffy or constrictive, and can also have a burning sensation, but not like a sharp pain like a pinprick or knife, occasionally accompanied by a fear of dying. Some patients only feel chest discomfort and do not think there is pain. During an attack, the patient is often forced to stop the activity being performed until the symptoms are relieved. 3, pain triggers: attacks are often triggered by physical labor or emotional excitement (such as anger, anxiety, overexcitement, etc.), and can also be triggered by satiety, cold, smoking, etc. Pain mostly occurs at the time of exertion or excitement, rather than after a day of exertion. 4.Pain duration: the pain often increases gradually after it appears, and then gradually disappears within 3-5 minutes. 5.Pain relief mode: Generally, the pain can be relieved after stopping the activities that induce symptoms; sublingual nitroglycerin can also relieve it within a few minutes. The symptoms of coronary heart disease are not limited to the above points, some patients sleep at night with a low pillow, feel chest tightness and breathlessness, need to lie on a high pillow to feel comfortable; sleeping, or lying down during the day suddenly chest pain, palpitations, inspiratory difficulties, need to immediately sit up or stand up to alleviate; or sexual life or forceful defecation when the heart panic, chest tightness, shortness of breath or chest pain discomfort; or hear the noise will feel panic, chest tightness; or repeatedly appear pulse Therefore, in order to detect coronary heart disease as early as possible, people over 40 years old should have regular medical checkups or further examinations in order to detect coronary heart disease and treat it as early as possible.