HDL cholesterol is a beneficial serum protein, a protective protein that is synthesized mainly in the liver and assumes the role of cholesterol carrier. Elevated HDL cholesterol has a protective effect on the body, especially on the arteries, and can have an anti-atherosclerotic effect. Therefore, if the test result shows high HDL cholesterol, it usually indicates that the patient has a healthy body and is at low risk of coronary heart disease and cerebral infarction, so there is no need to worry too much. Patients can continue to maintain their existing good lifestyle, regular work and rest, adhere to a low salt and low fat diet, increase the intake of fresh vegetables and fruits, and quit smoking and limit alcohol. At the same time, appropriate exercise can promote the metabolism of the body, as well as the establishment of a positive and optimistic attitude. However, patients need to note that the HDL cholesterol measurement value is not constant, if they do not pay attention to maintain a good diet and living habits, the HDL cholesterol value may be low, which indicates that the body’s ability to adsorb lipids in the blood vessels will decrease, easily leading to hyperlipidemia, coronary heart disease, cerebrovascular disease, liver cirrhosis and other diseases, and if necessary, drugs or surgery will be applied. If necessary, medication or surgery will be needed to treat the disease, which will bring unnecessary damage to the body. Therefore, it is recommended that patients should have regular medical checkups and strengthen their health management to improve their quality of life.