HDL 0.92 mmo/L, which is abnormal, suggests a low level. HDL cholesterol refers to the group of lipoproteins with the highest particle density in the serum, and its increased level facilitates the removal of cholesterol from peripheral tissues. HDL cholesterol is often referred to as the “good cholesterol”, and when normal or high, it helps to prevent the development of atherosclerosis. According to the diagnostic criteria, the normal reference value of HDL is 1.03~2.07mmo/L, more than 1.04mmo/L suggests an appropriate level, and less than 1.04mmo/L suggests a reduced level. Therefore, HDL 0.92mmo/L suggests a low level. Generally low HDL suggests atherosclerosis, or the presence of certain acute infections. Decreased values can also be seen in diabetics, patients with nephrotic syndrome, and people on medications such as androgens, beta-blockers, and progesterone. When low HDL is detected, timely intervention can be made after consulting a doctor to clarify the cause, paying attention to a light diet and increasing exercise in daily life, and actively controlling weight if overweight or obese.