High LDL is high LDL anemia, which is prone to induce atherosclerosis and other diseases. The role of LDL in the body is mainly to transport cholesterol to the blood and tissues throughout the body, and can combine with oxygen molecules to form oxidized LDL. Generally, when serum LDL is higher than 3.4mmol/L, it is considered that there is a high LDL anemia. High and low density lipoprotein anemia will lead to an abnormal increase in the concentration of cholesterol in the blood, easy to adhere to the walls of blood vessels, inducing atherosclerosis and other diseases, increasing the risk of coronary heart disease, cerebral infarction, peripheral arterial disease and other cardiovascular diseases, which is detrimental to human health, such as the presence of high and low density lipoprotein anemia found in the examination, please pay attention to it.