Fatty liver in children is a condition caused by the liver’s inability to process fat correctly and in a timely manner, causing fat to accumulate on the liver. Most of the affected children have no obvious conscious symptoms, often found during physical examination, or only symptoms such as loss of appetite, abdominal discomfort, susceptibility to stomatitis, weakness, fatigue, and vague pain in the liver area or right upper abdomen. Although fatty liver is a benign lesion, if effective measures are not taken, it may increase the risk of developing arteriosclerosis, fatty liver cirrhosis, hypertension and other diseases. There are many causes of fatty liver in children, the main ones are as follows: 1, children with uncontrolled diet, excess nutrition, overweight, excessive obesity, etc. 2, children anorexia, wasting, malnutrition, because the body needs to consume energy in the long-term can not meet the state, the body will mobilize the whole body fat decomposition into fatty acids transported to the liver, but the liver can not change them all into energy, the remaining part is deposited in the liver, the formation of fatty liver. 3, some children suffering from chronic diseases and long-term use of hormone therapy are also susceptible to fatty liver. 4. Inherited metabolic diseases. Fatty liver in children generally belongs to mild fatty liver, which can be reversed without special treatment. Specific measures are as follows: 1. First, find out the cause of fatty liver and remove the cause in time. 2, obese children are prone to fatty liver, so we should control the children’s diet, give reasonable meals, so that they develop good eating habits, not picky, partial food. Strictly control the sugar diet, eat more fruits and vegetables. It is very important to supplement a high protein diet. It can make fat into lipoprotein, which is good for transporting fat out of the liver. 3. 4.Strengthen exercise to increase the amount of exercise.