There is no such expression as protein cholesterol, but rather cholesterol can be classified within it, such as HDL cholesterol, LDL cholesterol, and very low density lipoprotein cholesterol, so this is a full term within the cholesterol classification. Cholesterol has important physiological functions, including the formation of cell membrane components of the body’s main unit cells, the formation of bile acids and the formation of hormones, which are important for the body. However, high cholesterol in patients can also cause abnormal changes, for LDL cholesterol and very low density lipoprotein cholesterol, which in this case are high and may lead to atherosclerosis, which also predisposes to coronary heart disease, angina, cerebrovascular accidents, cerebral infarction and other diseases. HDL cholesterol differs from them and shows an inverse correlation with the risk of atherosclerosis, which can also be called good cholesterol and bad cholesterol, so it is important to identify different cholesterol for different cholesterol above checking the degree of elevated cholesterol.