The causes of fatty liver include: 1, obesity: is the most common cause, mainly related to abdominal obesity; 2, alcoholism: long-term alcohol consumption makes lipid metabolism disorder, resulting in excessive fat deposition in liver cells, through the abstinence of alcohol can effectively improve the symptoms; 3, malnutrition: malnutrition can lead to lipid metabolism disorder, so that apolipoproteins reduce, so that a large amount of fat deposition in the liver, resulting in fatty liver; 4, rapid Weight loss: the normal fat metabolism in the body is disturbed, resulting in the deposition of fat in the liver, causing fatty liver; 5, drugs: some clinical drugs such as lipid-lowering drugs can interfere with the metabolism of lipids and cause fatty liver; 6, pregnancy: eating too much high-fat food during pregnancy, resulting in excessive fat deposition in the liver, causing fatty liver.