Fatty liver can include alcoholic fatty liver and non-alcoholic fatty liver, with non-alcoholic fatty liver being common among young people. The treatment principles for these patients are: first, remove the cause and inducement, control the primary disease. Second, adjust the dietary plan, correct nutritional imbalances. Third, engage in physical exercise, primarily aerobic exercise, to control weight. Fourth, maintain normal blood lipids and blood sugar levels. Fifth, correct unhealthy behaviors, such as binge eating and lack of physical activity. Sixth, when necessary, take medications for liver protection, lipid reduction, and anti-fibrosis.