Total cholesterol of 6.48 mmol/L is on the high side. The normal value of total cholesterol is 2.83-5.20mmol/L. 6.48mmol/L is higher than normal and is considered hypercholesterolemia. Long-term high cholesterol can lead to atherosclerosis, which gradually narrows or even occludes the arteries and is a risk factor for myocardial ischemia, cerebral infarction and other diseases. Patients with high total cholesterol should choose foods with low cholesterol content in their diet, such as vegetables, soybean products, lean meat, etc., quit smoking, limit alcohol, strengthen exercise, and reduce weight appropriately, and at the same time, they can follow the doctor’s instructions to take drugs such as atorvastatin and resuvastatin. Total cholesterol 6.48mmol/L should go to the hospital, under the guidance of the doctor’s treatment.