Low HDL is mainly treated by improving lifestyle and using medications such as fenofibrate. HDL is a serum protein that exports cholesterol, prevents free cholesterol deposition, achieves anti-atherosclerotic effect, and is a protective factor against coronary heart disease. When the HDL level is less than 1.0 mmol/L it is said to be low HDL. Low HDL is usually adjusted by improving lifestyle such as reducing fat intake, increasing exercise, etc. When patients have symptoms such as high cholesterol, they need to be treated with drugs such as fenofibrate, which may cause headache and other adverse reactions, and should be used with caution in patients who are allergic to this drug, or have abnormalities of liver and kidney function. At the same time, some diseases that cause low HDL need to be treated for the primary disease. If you have low HDL, please consult your physician for specific treatment options and treat according to the specific cause of the disease.