Fatty liver can be divided into: non-alcoholic fatty liver (simple fatty liver, steatohepatitis, fatty liver fibrosis and cirrhosis), and alcoholic fatty liver. To control fatty liver, the principle of prevention should be implemented, and the original or related causes should be controlled for different etiologies in the treatment to achieve early detection and early treatment. The following six types of people are most likely to suffer from fatty liver 1, alcoholics, alcoholics: alcohol has a strong direct toxic effect on liver cells, alcoholic fatty liver is the first and most common lesion in alcoholic liver disease, and the degree of its lesion is positively related to the total amount of alcohol (especially strong white wine). 2, obese people: the main reason is that the obese blood contains a large number of free fatty acids, constantly transported to the liver, greatly exceeded the transport metabolic capacity will cause the accumulation of liver fat and cause obesity fatty liver. 3, over-nourished people: over-nourished, especially those who prefer meat and sweets, due to over-eating high-fat, high-sugar food, so that the liver burden increases, interfering with the metabolism of fat, so that the balance is disturbed, resulting in over-nourished fatty liver. 4, malnourished people: artificial dieting, prolonged starvation, anorexia nervosa, malabsorption caused by intestinal lesions, insufficient supply of calories and low supply of proteins lead to increased fat mobilization, and a large amount of fatty acids are released from adipose tissue into the liver, causing malnutrition fatty liver due to fat accumulation in the liver. 5, too little activity in the middle-aged and elderly: after entering middle-aged and elderly, due to physiological decline, degeneration of visceral function, metabolic function decline, if the activity and physical exercise is reduced, the body fat into energy is reduced, excess fat is easy to accumulate in the liver and the formation of fatty liver. 6, other: hepatitis, hyperlipidemia, diabetes and other diseases, drug poisoning, chemical poisoning, pregnant women and certain familial metabolic diseases can lead to fatty liver. The general principles of fatty liver prevention and treatment are as follows 1, strengthen health education, change bad habits: “white-collar” fatty liver prevalence rate is higher, may be related to the relatively high standard of living of white-collar workers, and relatively less physical exertion, and often over-eating, snacking, eating late at night and other irregular eating patterns. Good living habits include: reasonable meals, three regular meals, less snacks and late-night snacks; less alcohol, regular rest and exercise, keep a cheerful mood and pay attention to the combination of work and rest. 2, symptomatic treatment alcoholic fatty liver is the key to quit drinking. Often after 2-4 weeks after quitting alcohol, hepatomegaly and some abnormal laboratory indicators can return to normal. Fatty liver caused by obesity, weight loss can generally achieve better results, but should be carried out under the guidance of a doctor. For fatty liver caused by diabetes and viral hepatitis, the primary disease should be treated actively. 3.Medication There is no specific drug for fatty liver. Although some drugs are reported to be effective, further clinical trials are needed to confirm. There are many so-called “lipid-lowering and liver-protecting drugs” on the market, some of which have large side effects and some of which are only suitable for fatty liver caused by certain causes, so do not believe in the wrong advertising propaganda in the society and always take the drugs under the guidance of a doctor. The natural regression and prognosis of fatty liver depends mainly on its etiology and pathological type. The vast majority of patients with fatty liver have slow progression or even a quiescent state of hepatic histological changes and have a relatively good prognosis. Even if steatohepatitis and hepatic fibrosis have been complicated in some patients, the hepatic histological changes can be reversed if timely treatment is received.