Cholesterol (total cholesterol) 5.77 mmol/L is generally borderline elevated. Cholesterol is an important indicator for clinical biochemical examination, which is mainly synthesized in the liver and ingested from food, and metabolized by the body to maintain a constant concentration of cholesterol in the blood. According to the “Chinese Guidelines for Prevention and Control of Dyslipidemia in Adults (2016 Revision)”, total cholesterol of 5.2-6.19 mmol/L is borderline elevated, so total cholesterol of 5.77 mmol/L belongs to the borderline elevation. When total cholesterol is borderline elevated, it is often affected by diet and lifestyle. Dietary control and lifestyle improvement are the basic measures for treating dyslipidemia, regardless of whether drug treatment is chosen, it is necessary to adhere to lifestyle intervention, improve lifestyle, pay attention to appropriate sports and exercise, low-fat and low-cholesterol diet, and regular review. If the total cholesterol is found to be significantly elevated several times, it is recommended to consult a doctor in time for standardized treatment under the guidance of a physician.