The normal value of cholesterol is between 2.84~5.68mmol/L. Cholesterol 6.12mmol/L is on the high side and may be more serious. Due to different testing methods and reagents, the reference indexes are different in each hospital and need to be analyzed specifically. High cholesterol may be related to factors such as heredity, dietary preference for animal offal and fatty foods, etc., lack of exercise, alcohol consumption, and mental stress. Hypercholesterolemia is an important risk factor for stroke, coronary heart disease and sudden cardiac death. Hypercholesterolemia can lead to angina pectoris, myocardial ischemia, cerebral infarction, cerebral softening and other diseases, and in severe cases, it can cause acute myocardial infarction or even sudden death. When hypercholesterolemia is found, diet should be adjusted first to improve lifestyle, such as low-salt and low-fat diet, avoiding greasy and fried food, reducing the intake of animal offal, exercising in moderation, reducing weight reasonably, quitting smoking and drinking, and keeping a good mood. Those who have poor results after lifestyle intervention can take statin lipid regulating drugs, such as atorvastatin, resuvastatin, simvastatin, etc. Patients with cholesterol 6.12mmol/L should go to the hospital and be treated under doctor’s guidance.