Fatty liver is a lesion caused by excessive accumulation of fat in the liver cells due to various reasons. In general, fatty liver is a reversible disease, early diagnosis and timely treatment can be restored to normal. First, the formation of fatty liver causes 1, obesity fatty liver degree of fat accumulation in the liver and weight proportional. 30% to 50% of obesity combined with fatty liver, heavy obesity fatty liver lesion rate up to 61% ~ 94%. Obese people’s weight is controlled, its fat infiltration is also reduced or disappeared. 2, alcoholic fatty liver long-term alcoholics liver puncture biopsy, 75% to 95% have fat infiltration. Others observed that the incidence of alcoholic fatty liver increased by 5 to 25 times when drinking more than 80 to 160 grams of alcohol per day. 3, rapid weight loss fatty liver fasting, excessive dieting or other rapid weight loss measures can cause a large increase in lipolysis in the short term, consuming glutathione (GSH) in the liver, causing a large increase in malondialdehyde and lipid peroxides in the liver, which can damage liver cells and lead to fatty liver. 4, malnutrition fatty liver Malnutrition leading to protein deficiency is an important cause of fatty liver, mostly due to insufficient food intake or digestive disorders, can not synthesize apolipoproteins, resulting in triglyceride accumulation in the liver, resulting in fatty liver. 5, diabetic fatty liver about 50% of diabetic patients can occur fatty liver, which is more adult patients. Because 50% to 80% of adult diabetic patients are obese, their plasma insulin levels and plasma fatty acid increases, fatty liver change is related to both the degree of obesity, and eating too much fat or sugar related. 6, drug fatty liver certain drugs or chemical toxins through the inhibition of protein synthesis and fatty liver, such as tetracycline, adrenocorticotropic hormone, puromycin, ring has been amine, thujone base and arsenic, lead, silver, mercury, etc.. Lipid-lowering drugs can also form fatty liver by interfering with the metabolism of lipoproteins. 7, fatty liver in pregnancy Most in the first 34-40 weeks of gestation, the disease is serious, the prognosis is not good, maternal and infant mortality rate of 80% and 70% respectively. 8.Fatty liver caused by other diseases Fatty liver can also occur during infections such as tuberculosis, bacterial pneumonia and sepsis, and fatty liver can easily accumulate in liver cells of patients with viral hepatitis if they excessively restrict their activities and consume a high sugar and high calorie diet. Fatty liver improves rapidly after controlling the infection or removing the cause, and there are also so-called extra-gastrointestinal hypertrophic fatty liver, toxic fatty liver, fatty liver caused by hereditary diseases, etc. Second, the treatment of fatty liver 1, diet therapy For obese people and diabetes, hyperlipidemia patients, but for unknown reasons and alcoholic fatty liver is not effective. Diet therapy and exercise are the basis of weight reduction. It is necessary to consume multi-fiber, high-protein and lipophilic-rich diet, pay attention to control the intake of carbohydrates, avoid night snacking and overeating, so as to reduce body weight. 2, exercise therapy Exercise therapy is mainly to remove abdominal visceral fat. The best type of exercise is aerobic exercise, such as brisk walking, swimming, playing table tennis, etc. During exercise, the body is mainly aerobic decomposition metabolism, which reduces plasma insulin, inhibits triglyceride synthesis and promotes fat decomposition. And sprinting, basketball and soccer and other anaerobic exercise, increase the body’s energy consumption, so that glycolysis increases, free fatty acid consumption is blocked, the weight loss effect is not as good as aerobic exercise. 3, drug treatment Drug-assisted treatment should be reasonable. Because the disorder of lipoprotein metabolism involves multiple factors and links, there is a lack of satisfactory drugs in the clinic so far. Mono fatty liver not only drug treatment is ineffective, and the use of drugs to increase the burden on the liver, harmful. In patients with alcoholic hepatitis and non-alcoholic fatty liver hepatitis NASH, comprehensive therapy plus treatment with hepatoprotective antioxidant drugs can promote the regression of intrahepatic fat and accompanying inflammation and stop the development toward liver fibrosis and cirrhosis.