Fatty liver is not an independent disease, it is a metabolic disease caused by a variety of factors or diseases caused by excessive accumulation of fat in the liver cells, is the transitional stage of liver fibrosis and cirrhosis disease. Long-term research has found that fatty liver occurs mainly for the following five reasons: 1. Alcohol: alcohol is the most common cause of fatty liver, Chinese feelings seem to be promoted at the banquet, long-term alcohol consumption leads to alcoholism, which has a direct toxic effect on the metabolism of triglycerides in the liver, resulting in reduced fat oxidation in the liver and causing a large accumulation of fat. Chronic alcoholics nearly 60% occur fatty liver, 20%-30% will eventually develop into cirrhosis, liver cancer. 2, excess nutrition: long-term eating large fish and meat, fried food and sweets, so that the liver fat synthesis too much. When the fat content of the food eaten is too high, it exceeds the limit of liver processing, which increases the burden on the liver, interferes with the metabolism of fat, breaks the balance of input and output of the liver, fat accumulates in the liver and forms fatty liver. 3, obesity: about half of the obese people have the tendency to combine fatty liver. Domestic scholars found that: 10 “fat children” in 8 suffer from fatty liver, the main reason is that the obese blood contains a large number of free fatty acids, constantly transported to the liver, greatly exceeding the liver’s transport metabolic capacity, causing the accumulation of fat in the liver and fatty liver caused by obesity. 4, diabetes: about half of the type 2 diabetes patients with fatty liver, this is because the glucose and fatty acids in the body of diabetic patients can not be well utilized, lipoprotein synthesis is also impaired, most of the glucose and fatty acids in the liver into fat, and eventually make fat accumulate in the liver, resulting in fatty liver. 5. Hyperlipidemia: The fatty substances in the blood are collectively known as lipids. Lipids in the blood include cholesterol, triglycerides, phospholipids, etc. They are combined with different proteins in the blood and exist in the form of “lipoproteins”. Hyperlipidemia refers to high cholesterol and triglyceride levels in the blood or low HDL cholesterol. When there are more lipids in the blood than the liver can handle, fat accumulates in the liver, causing a fatty liver.