Non-hdl-c refers to non-HDL cholesterol, which mainly includes low-density lipoprotein cholesterol (ldl-c) and very low-density lipoprotein cholesterol (vldl-c). The reference value for non-HDL cholesterol ranges from 1.97 to 4.63 mmol/L, which is generally calculated by subtracting HDL cholesterol from total cholesterol content. It has been shown that non-hdl-c is the best risk predictor for all cholesterol measurements in the occurrence of coronary heart disease and stroke, and guidelines have recommended that it be the primary target for primary and secondary prevention of atherosclerotic cardiovascular disease. If non-hdl-c levels are significantly elevated, it can indicate the presence of hyperlipidemia and an increased risk of cardiovascular events, and timely lifestyle changes such as a light diet, weight control, and increased exercise are recommended. At the same time, it is necessary to consult a doctor in a timely manner for a comprehensive examination and take lipid-lowering drugs such as atorvastatin under the guidance of a physician.