HDL 0.9mmol/L alone has no special clinical significance, it is recommended to combine with other indicators of blood lipids to comprehensively determine whether the need for medication. 1. If the patient is obese, with high triglycerides and cholesterol, and has a history of cardiovascular and cerebrovascular diseases, it is recommended to give statins such as atorvastatin calcium tablets or Rosuvastatin calcium tablets to lower lipids, stabilize plaques, and reduce the incidence of cardiovascular and cerebrovascular diseases. 2. If the patient’s body is normal or thin, triglyceride, cholesterol and LDL index is normal or slightly high, it is not recommended to take drugs, usually pay attention to monitor blood pressure, restrict diet, pay attention to appropriate exercise, and regular re-examination and monitoring of blood lipids can be. HDL can be regarded as an anti-atherosclerotic factor, the normal value is 1.03-2.07mmol/L, if ≤1.0mmol/L, then consider reducing, the possible causes are atherosclerosis, acute infection, the use of β-blockers. The above medications are recommended to be used under the guidance of a physician and unauthorized use is not recommended.