Patients with coronary artery disease have many clinical symptoms, many of which are atypical, and some patients may have coronary artery disease without knowing it and do not have any discomfort symptoms during the day. What are the symptoms of coronary heart disease? Today we will talk about them. The typical symptoms of coronary heart disease are pressure pain behind the sternal body and in the precordial area, often accompanied by radiating pain symptoms, which can radiate to the left shoulder, the left inner arm, and even to the ring finger, these are more typical symptoms, there are some patients, when coronary angina attacks, can show tightness in the throat area, others can even appear toothache, ear pain, these are atypical angina performance. Some patients do not have a clear history of pain, but just feel stuffy or have an unspeakable feeling of discomfort in the precordial area. For patients who have been taking pain relievers for a long time, or are diabetic, it is possible that they are not sensitive to pain and are bewildered by the presence of coronary artery disease. Therefore, for patients with high risk factors for coronary heart disease, even if they do not have any precordial discomfort symptoms, they should undergo regular medical checkups, which can be done every two years for coronary CT and at least once a year for homocysteine, serum uric acid, blood lipids, blood sugar and other laboratory tests, because these indicators are independent risk factors for coronary heart disease. The symptoms of coronary heart disease are often not continuous and most of them have certain triggers, for example, patients are often prone to be triggered by exertion, staying up late, mental stress, cold stimulation, and after a full meal. If the patient is at rest, without any trigger, that can trigger coronary artery disease, angina, then it is often considered that there may be more serious stenosis of the coronary vessels. Patients with stable angina tend to have their symptoms relieved after taking nitroglycerin or salvia drops, usually in about one to two minutes. Patients with acute coronary syndrome who do not see significant relief with medication need prompt cardiac enzymology and electrocardiography. In patients with chronic coronary artery disease, the pain will gradually worsen after it appears and will last for a period of time after the pain has worsened to a certain level, and then the pain symptoms will gradually disappear and be relieved. As we get older, the probability of suffering from coronary heart disease will increase, but the current population of coronary heart disease is gradually becoming younger, he is not the exclusive patent of the elderly, many young patients due to some bad habits will also occur in young and middle-aged coronary heart disease, or even myocardial infarction. In daily life, we must cherish our own body.