Total cholesterol its normal value is between 3 and 5.69 mmol/L. If the blood lipid examination suggests a total cholesterol of 6.3 mmol/L, the possibility of hyperlipidemia is considered. There are four reasons for elevated cholesterol as follows: 1. dietary reasons: eating too much fried food, animal fat, animal offal, animal brain, sea crab, shellfish and other foods in the usual diet can lead to elevated cholesterol; 2. physical reasons: being obese, having a waist circumference greater than or equal to 90cm for men and 85cm for women, or having a body mass index greater than 24% can cause elevated cholesterol 3. genetic reasons: it is a familial disease; 4. disease effects: such as nephrotic syndrome, hypothyroidism, etc. For patients with elevated total cholesterol, the intake of foods with high cholesterol content, such as egg yolk, animal offal and fat, and seafood squid, should be reduced appropriately. These foods contain high cholesterol, which can cause hypercholesterolemia and further cause coronary heart disease, gallbladder stones and intrahepatic bile duct stones if used in excess for a long time. Therefore, if the total cholesterol is higher than 6.3 mmol/L, consider taking lipid-lowering drugs such as simvastatin or atorvastatin under the guidance of a doctor. Usually, you should pay attention to more exercise in your daily life and avoid prolonged sitting, standing or low physical work.