The functions of the liver mainly include the secretion of bile, participation in the metabolism of the three major nutrients, detoxification, hematopoiesis and coagulation. 1. Secretion of bile: participating in the digestion and decomposition of food. Liver cells are the main place to secrete bile, which can decompose and digest fat and cholesterol, and is a very important part of the digestive process. 2. Participate in the metabolism of the three major nutrients: sugar, lipid, protein metabolism can not be separated from the liver. The liver contains various active enzymes for the conversion of sugar, fat and protein decomposition. Sugar is converted into liver glycogen, which can be stored in liver cells. 3. Detoxification function: the metabolic toxins produced in the body, the toxic ingredients in the ingested food and some drugs must rely on the detoxification effect of the liver; some hormones are also inactivated in the liver. 4. Coagulation: the liver is an important organ to produce coagulation factors, which are essential components in the process of blood clotting. 5. Hematopoietic function: the liver is an important organ for hematopoiesis during the embryonic period. When abnormal liver function occurs, it is recommended to consult a doctor in time and under the guidance of a professional physician as soon as possible.