LDL 3.66mmol/L can be treated with lifestyle interventions, and if this is not effective, it can be treated with medication. The medical reference value of LDL can be categorized into three grades, LDL <3.4mmol/L suggests that it is at the right level, while between 3.4-4.1mmol/L suggests that it is borderline elevated, and when it is >4.1mmol/L, it suggests that the value is on the high side. When LDL is at 3.66mmol/L, it suggests that it is borderline elevated, which suggests that we need to control the relevant indexes in time to avoid LDL exceeding 4.1mmol/L and increasing the risk of atherosclerosis. Lifestyle interventions, such as minimizing the intake of high-fat and high-calorie foods and increasing physical activity, can help to keep LDL within the appropriate level. If lifestyle intervention is ineffective and accompanied by other lipids, medications may be considered to assist in the control of LDL. If the LDL is higher than normal, it is recommended to go to a regular hospital.