It is a good thing if a patient has high serum HDL cholesterol. Elevated HDL cholesterol means that the patient is not prone to atherosclerotic disease. The reason for this situation is likely to be that the patient exercises regularly on a regular basis, always eats fresh fruits and vegetables on a regular basis, and keeps a happy mood from time to time, so that the person is prone to have elevated HDL, cholesterol. Some elderly patients may also be due to long-term use of statin lipid-lowering drugs, which can also cause high HDL cholesterol, because statin drugs themselves can raise high-density steroids, and its representative drugs are pravastatin, resulvastatin and so on.