Clinically, many patients do not know much about coronary heart disease and think that general heart disease is coronary heart disease, or they tend to think that their heart is bad when they have symptoms of chest pain, but in fact, chest pain can be caused by many reasons. Trauma, inflammation, tumor and certain physical and chemical factors can cause chest pain by stimulating the intercostal nerve, phrenic nerve, posterior spinal nerve root and vagus nerve, which are located in the esophagus, bronchus, lung, pleura, nerve endings of heart and aorta. Therefore, chest pain is not necessarily caused by coronary heart disease. In order to let you better understand coronary heart disease, today we will give you some knowledge related to coronary heart disease. What is coronary heart disease? Coronary atherosclerotic heart disease is a heart disease caused by atherosclerotic lesions in the coronary arteries, resulting in narrowing or blockage of the blood vessels, causing ischemia, hypoxia or necrosis of the myocardium, often called “coronary heart disease”. There are five clinical types of coronary heart disease: asymptomatic myocardial ischemia (occult coronary heart disease), angina pectoris, myocardial infarction, ischemic heart failure (ischemic heart disease) and sudden death. Early symptoms of coronary artery disease 1. When the symptoms of coronary artery disease appear, the patient is prone to exertion or nervousness, and suffocating pain behind the sternum or in the precordial area, or constricting pain, which spreads to the shoulders and arms and lasts for a few minutes, and can be relieved after resting by oneself; 2. 3, the symptoms of coronary heart disease may be related to exercise, when people participate in physical exercise, and headache, toothache and leg pain, it is best to go to a specialist hospital for examination; 4, hear the noise, full meal, cold or watch a thrilling film when the chest pain, palpitations, should also be suspected that this is the early symptoms of coronary heart disease; 5, when the night sleep pillow is low, feel the symptoms of chest tightness and breath-holding, patients need a high pillow When sleeping or lying down during the day, sudden chest pain, palpitations, difficulty in breathing, need to sit up or stand up immediately to relieve is likely to have coronary heart disease; 6, coronary heart disease patients in sex, or force defecation, easy to appear panic, chest tightness, shortness of breath or chest pain discomfort, when the above symptoms, we should be alert; can be seen, coronary heart disease symptoms mainly to chest pain, chest tightness, palpitations However, not all patients will have the above-mentioned typical symptoms in the early stage, and some patients with coronary heart disease may have atypical symptoms in the early stage, or even no symptoms to follow. In 30%-50% of patients with angina attack, the symptoms are atypical, not chest pain, but pain in the upper abdomen, back, left upper limb, pharynx, neck, teeth, shoulders, individual legs and inner right hand. Causes of coronary heart disease There are many triggering factors for coronary heart disease, such as high blood pressure, dyslipidemia, overweight and obesity, high blood sugar, diabetes, poor lifestyle including smoking, unreasonable diet, lack of physical activity, excessive alcohol consumption, and psychosocial factors may trigger coronary heart disease. How to prevent coronary heart disease? 1, reasonable diet, reduce weight, eat less cholesterol-containing food, such as animal fat, offal and brain, and seafood, squid, cream, avoid overeating. 2, prohibit smoking and alcohol, eat more light food, such as vegetables, fruits and vegetables, moderate consumption of vegetable oil, work and rest. 3.Actively treat diseases related to this disease, such as hypertension, obesity, hyperlipidemia, diabetes, liver disease, etc. When angina attacks, immediately stop activities, rest, if necessary, can contain nitroglycerin tablets. Warm tip: please combine the specific medication with clinical, by the doctor’s face to face guidance shall prevail.