Fatty liver is becoming more and more prevalent in modern society, which not only causes significant damage to the liver, but also generates many complications and causes a series of “butterfly effects” on the body. Fatty liver leads to cirrhosis and liver cancer Fatty liver is the product of dysfunctional liver lipid metabolism, and is also a causative factor for liver damage. Long-term degeneration of liver cells will lead to regeneration disorders and necrosis of liver cells, which will lead to liver fibrosis and cirrhosis. The chance of cirrhosis secondary to liver cancer is high, and once cirrhosis develops to the decompensated stage, liver coma, liver ascites, gastrointestinal haemorrhage, liver failure, liver and kidney syndrome are very likely to occur, which is not far from the end of life. 2, fatty liver induced hypertension, atherosclerosis Fatty liver patients with dysfunctional lipid metabolism, high blood triglycerides, and often accompanied by hyperlipidemia, increased blood viscosity, promote the formation of atherosclerosis. The relationship between atherosclerosis and hypertension and coronary heart disease is very close, and studies have shown that alcoholic fatty liver patients combined with hypertension and coronary heart disease can easily lead to sudden death due to myocardial infarction. 3, fatty liver induces or aggravates diabetes Fatty liver patients with dysfunctional lipid metabolism can trigger and aggravate dysfunctional glucose metabolism. Diabetes mellitus is a disease mainly caused by the disorder of glucose metabolism due to insufficient insulin secretion or insulin resistance, which is characterized by hyperglycemia, hyperlipidemia and hyperaminoacidemia. About 50% of diabetic patients have fatty liver in combination, so fatty liver and diabetes are a pair of difficult brothers and sisters. 4.Fatty liver increases the risk of intestinal cancer Why does fatty liver increase the risk of intestinal cancer? Severe colorectal polyps are precancerous lesions of colorectal cancer, and dietary factors have a relationship with the formation of colorectal polyps, especially the interaction of bacteria and bile acids may be the basis for the formation of adenomatous polyps. Dietary fatty components exceeding 40% are an important factor in the formation of colorectal polyps, and the incidence of colorectal polyps is lower if fat intake does not exceed 15% of the diet. High-fat diet can increase the bile acids in the colon, and fatty liver is the most important cause of excessive intake of animal fat and red meat, not only increases the intake of fat, this situation will also increase the accumulation of carcinogenic substances bile acids in the intestine, which leads to intestinal cancer. 5. Fatty liver reduces the immune and detoxification function of human body. Fatty liver patients have fatty degeneration or necrosis of liver cells, which reduces the immune function of liver, and fatty liver patients often have enlarged liver and spleen. The spleen is also an important immune organ in the human body. Splenomegaly causes hypersplenism, and abnormal spleen function inhibits the function of cellular immunity, so fatty liver patients are more likely to be infected because of their reduced immune function and poor resistance. In addition, the fatty degeneration of liver cells reduces the detoxification function, which easily causes the retention of endotoxins and exotoxins in the body and causes poisoning to the organism. The stomach, intestines, liver and gallbladder are all important organs of the digestive system, and the body’s intake of the three major nutrients (protein, fat and sugar) must be metabolized by the liver before they can be used by the body. In fatty liver patients, liver function is impaired, and over time, the spleen, gallbladder, stomach and intestines will be involved. Liver disease often affects the function of the gallbladder, about 20% to 30% of patients with fatty liver; accompanied by chronic cholecystitis, gallstone disease, therefore, the early prevention and treatment of fatty liver is particularly important.