Total cholesterol 68mmol/L is higher than the normal reference value range, which may be related to physiological reasons such as long-term mental stress, or hyperlipoproteinemia, diabetes mellitus, medications and so on. Cholesterol is affected by many factors such as age, family, gender, heredity, diet, and spirit, etc. The normal appropriate level is <5.20mmol/L, the borderline level is 5.20~6.20mmol/L, and >6.20mmol/L is elevated, so the total cholesterol of 68mmol/L is significantly higher than the normal reference value. Elevated total cholesterol may be related to physiological causes such as long-term smoking, alcohol consumption, mental stress, and pathological causes such as atherosclerosis, hyperlipoproteinemia, and diabetes mellitus. It may also be related to oral medications such as cyclosporine and aspirin. When the total cholesterol of the organism is elevated, the cause should be clarified under the guidance of a doctor so that it can be actively controlled.