LDL 3.72mmol/L requires medication if lifestyle interventions are ineffective or if risk factors such as hypertension are present. The normal reference range of LDL is less than or equal to 3.4mmol/L, 3.4~4.1mmol/L is borderline level, more than 4.1mmol/L is elevated, so 3.72mmol/L is borderline level. For people with risk factors such as coronary heart disease, high blood pressure, and diabetes, LDL should be less than 1.8 mmol/L. For people with borderline LDL, lifestyle intervention is usually the first step, including avoiding a diet high in salt and oil, quitting smoking and drinking, and maintaining a certain frequency and intensity of aerobic exercise. If the above methods do not work well, or already have the need to take drugs to strengthen lipid lowering, can be under the guidance of the doctor to take ezetimibe, statins such as atorvastatin and other drugs. In summary, it is recommended to consult a doctor for standardized diagnosis and treatment when necessary.