According to the China Population Survey on Nutrition and Chronic Diseases (2015), the prevalence of dyslipidemia among Chinese people aged ≥18 years was 40.4%, with a significant increase in the prevalence of dyslipidemia among Chinese adults over the past 10 years. The results of the 2012 national survey showed that the overall prevalence of dyslipidemia among Chinese adults was 40.40%, a significant increase from 2002. Hyperlipidemia has many hazards, which are insidious, progressive and systemic. It can not only cause fatty liver, but also directly accelerate the atherosclerosis of the whole body, which is especially harmful to the arteries and is often the basis for the development of cardiovascular and cerebrovascular diseases, so hyperlipidemia is often called the “silent killer”. Because hyperlipidemia patients do not show obvious symptoms, many of them need some time to develop into coronary heart disease and stroke, so it is easy for people to ignore the danger of hyperlipidemia. 1, the relationship between hyperlipidemia and fatty liver Fatty liver is caused by a large accumulation of fat in the liver, often combined with increased blood lipids, ultrasound examination is currently the main means of checking fatty liver, the incidence of fatty liver up to 5-10%, some patients can develop into cirrhosis, therefore, the prevention and treatment of fatty liver is very important to prevent the progress of chronic liver disease and improve the prognosis, hyperlipidemia patients, due to elevated blood lipids, fat accumulation in the liver Most of them can be cured, including eliminating the causes, improving lifestyle, adjusting diet structure and applying lipid-regulating drugs for treatment. 2, the relationship between hyperlipidemia and coronary heart disease Dyslipidemia, characterized by elevated LDL cholesterol or triglycerides, is an important risk factor for atherosclerotic cardiovascular disease. For patients with hyperlipidemia, the diagnosis of coronary atherosclerotic heart disease can be made due to the deposition of excessive lipids on the vascular wall, which causes atherosclerosis and obstruction of blood flow, causing ischemia in the heart and a series of symptoms. Lipid regulating treatment is the most basic therapy to prevent and treat coronary heart disease. Studies have shown that lowering serum cholesterol levels can significantly reduce the risk of coronary heart disease. For as long as you have coronary heart disease, regardless of whether your blood lipids are high or not, you should take long-term lipid regulating drugs (especially statins), because long-term lipid regulating treatment can reduce the incidence of coronary angina, myocardial infarction and mortality. 3, the relationship between blood lipid and cerebrovascular disease When the blood cholesterol increases, it is easy to form atherosclerotic plaques, these plaques accumulate in the arterial wall, narrowing the arterial cavity, blocking the blood flow to the corresponding parts, causing kinetic energy deficiency, which occurs in the cerebral vessels when it causes cerebral infarction, medical evidence: long-term lipid regulating treatment can not only treat cerebral infarction, but also prevent cerebral infarction, lipid regulating treatment and stroke. Many studies have proved that long-term lipid regulating treatment (especially statins) can significantly reduce the incidence and disability rate of stroke, therefore, clinicians are paying more and more attention to the treatment of hyperlipidemia. The relationship between high blood lipids and diabetes mellitus High blood lipids, high blood pressure and high blood sugar are called “three highs”, which are the main risk factors threatening the health and life of diabetic patients, and they are closely related. The key to reduce the mortality and disability rate of diabetic patients, diabetic patients should pay attention to the regulation of blood lipids: diabetes combined with high blood lipids is more likely to lead to stroke, coronary heart disease, limb necrosis, fundus lesions, nephropathy, neuropathy, etc. These long-term complications of diabetes are the main cause of disability or premature death of diabetic patients, more than half of diabetic patients combined with high blood lipids, active treatment of high blood lipids is beneficial to control blood sugar and prevent complications The treatment status of diabetes and lipid metabolism has become a criterion for the good or bad control of diabetic patients. For hyperlipidemia, the harm it brings should be actively prevented. Therefore, active and effective control of dyslipidemia is important for the prevention and control of fatty liver, cardiovascular and cerebrovascular diseases. Encouraging the public to adopt a healthy lifestyle is a basic strategy to prevent and treat dyslipidemia.