Etiologically speaking, coronary heart disease has many susceptibility factors, which are some of them: 1, and genetic relationship, often seen in the clinic, parents or siblings have coronary heart disease, all put stents, this is a genetic factor; 2, and age-related, with age, blood vessels will gradually harden, the blood vessel wall will grow some atherosclerotic plaque, it will cause the narrowing of blood vessels, of course Of course, the chance of coronary heart disease in young people aged 10-20 is very low, we often see some young people in the clinic with an electrocardiogram saying that ischemia, take the electrocardiogram to see coronary heart disease, but the possibility of coronary heart disease in young people is relatively small; 3, the occurrence of coronary heart disease and the patient’s hypertension, high blood sugar, high blood fat, and smoking are very related to these acquired factors, hypertensive patients and high blood fat and high blood sugar and smoking are very related. High blood pressure, high blood sugar and smoking are all predisposing factors to coronary heart disease.