Low HDL has the appearance of affecting liver function, inducing atherosclerosis and other hazards. HDL transports cholesterol and phospholipids in the body, and if the concentration of this protein is low, it may lead to the deposition of cholesterol and phospholipids in the liver, which may lead to cirrhosis of the liver and cause some damage to liver function. HDL also plays a role in protecting the endothelium of blood vessels, preventing damage to the endothelium and the formation of atherosclerotic plaques. If the HDL is low, the very low density lipoproteins in the body may damage the endothelium of blood vessels and lead to the formation of blood clots, which may induce coronary heart disease, cerebral infarction and other chronic diseases. Therefore, low HDL is very dangerous, if you find low HDL, you can follow the doctor’s advice to take acipimox and other niacin drugs to actively regulate, which will help to increase the concentration of HDL, so as to maintain the health of the body.