The formation of fatty liver is mainly due to overeating foods that are greasy, overly sweet, or have a high fat content. This leads to a significant increase in fat content in the blood, which accumulates in the liver. Severe fatty liver can progress to cirrhosis, so it is important to intervene promptly. The intervention generally involves dietary management; specifically, children should avoid eating overly greasy foods, as well as high-calorie items like sugars, chocolates, candies, which are better consumed in moderation or not at all. Additionally, increasing physical exercise, which refers to managing and reducing weight, is recommended. Depending on their personal circumstances, children should appropriately increase their amount of physical activity, as more exercise also accelerates the metabolism of fat in the body. It is advised for individuals with fatty liver to undergo a detailed examination at a hospital, and for doctors to determine whether medical intervention is necessary based on the specific conditions of the child. If it is only a mild to moderate case of fatty liver, doctors will likely suggest diet modification or physical exercise to help reduce it.