People susceptible to atherosclerosis-occlusive disease: 1, hypercholesterolemia: especially those with increased LDL: the occurrence of atherosclerosis is related to excessive saturated fat in food, too much exogenous fat can increase the concentration of cholesterol, triglycerides, LDL and very low density lipoprotein in the blood, while the concentration of high density lipoprotein is reduced, which mostly contributes to the formation of atherosclerosis. 2, diabetic patients: diabetes is a disease caused by an abnormal rise in blood sugar due to an absolute lack of insulin or insufficient insulin action in the body. In fact, insulin is not only in charge of the level of blood sugar, it is also the main regulator of the metabolism of two major types of substances, fat and protein, in the human body. Therefore, in diabetic patients, due to the biological regulation of insulin is impaired, often accompanied by disorders of lipid metabolism, lipid metabolism abnormalities, commonly known as ” hyperlipidemia “, and hyperlipidemia is one of the risk factors for the development of atherosclerosis occlusive disease. 3, smokers: atherosclerosis and smoking are very close, in atherosclerosis patients, smokers account for more than 80%! Smoking makes sympathetic excitation, a variety of vasoactive substances increase, causing vasospasm and endothelial cell damage; at the same time, smoking can make the platelet release and aggregation function is enhanced, so that the blood is hypercoagulable; in addition, smoking can also affect lipid metabolism, so that lipids increase, blood viscosity increases, creating strong conditions for the formation of thrombosis on the basis of atherosclerosis. 4, coronary heart disease and cerebrovascular disease patients: coronary heart disease and cerebrovascular disease is often based on hyperlipidemia and atherosclerosis and occur, so the chances of developing arteriosclerosis occlusive disease in patients with coronary heart disease and cerebrovascular disease will be much higher than others. 5, people with family history: clinically familial disease of atherosclerosis occlusive disease is very common, this is because of autosomal dominant genetic referred to familial hyperlipidemia, become the cause of these family members suffering from atherosclerosis. 6, hypertensive patients: hypertension is one of the important factors in the development of atherosclerosis, hypertension can produce tension mechanical damage to the arterial wall, resulting in damage to the arterial lining and changes in arterial structure, thus facilitating the formation of atherosclerosis.