Total cholesterol of 6.62mmol/L is more serious, the value exceeds the upper limit of normal total cholesterol, which is prone to atherosclerosis and hypercholesterolemia. The normal value of total cholesterol in adults is between 2.83-5.2mmol/L, and ≥6.2mmol/L is considered elevated total cholesterol. Therefore, if the test reveals a total cholesterol of 6.62mmol/L, it is more serious. Generally speaking, elevated total cholesterol is related to genetic defects, eating too much food with high fat content in life, and lack of exercise. Elevated total cholesterol can easily cause coronary atherosclerosis, blood vessel stenosis, insufficient blood supply to the heart and brain and other cardiovascular diseases. For people with high total cholesterol, first of all, we should adjust the dietary structure, quit smoking and drinking, eat more fresh vegetables and fruits, avoid frying, barbecue food, animal offal, reduce pork, beef and mutton high-calorie food, and can eat more fish in moderation. In addition to increase exercise, weight control, blood sugar control. On the basis of lifestyle changes, medications can be taken for treatment, such as statins such as simvastatin, atorvastatin, resuvastatin, etc., or ezetimibe to reduce the absorption of cholesterol. However, lipid-lowering drugs may have adverse effects such as increased transaminases, muscle aches and pains and even rhabdomyolysis. They should be used under the guidance of a doctor. People with high total cholesterol must consult a doctor in time, follow the doctor’s instructions for examination and treatment, and do not take medication without authorization, so as to avoid improper medication and damage to the body.