The normal range of LDL cholesterol is 1.53-3.45mmol/L. If the measured LDL cholesterol exceeds 3.45mmol/L, it is called elevated LDL cholesterol level, which will increase the risk of cardiovascular disease, because LDL cholesterol is closely related to the incidence of cardiovascular disease. For normal people, it is enough to ensure that LDL cholesterol is within the normal range, but for special groups, the requirements may be different, for example, for diabetic patients, the required control value is less than 2.6mmol/L for patients without combined coronary heart disease, and less than 1.8mmol/L for patients with combined coronary heart disease, in order to further reduce the occurrence of cardiovascular disease in diabetic patients. The purpose is to further reduce the risk of cardiovascular disease in diabetic patients. Elevated LDL cholesterol can be treated with statin lipid-lowering drugs such as atorvastatin, resulvastatin and simvastatin.