A 24-year-old young man was found to have mild fatty liver, which is generally not heavy and is directly related to the patient’s drinking, staying up late and long-term diet inattention. If there is a moderate increase or more, the patient needs to be treated with drugs such as glycine or bifenthrin to lower the enzyme and protect the liver. If there is only a slight rise in transaminases, not more than twice the normal value, no medication is needed, but the patient needs to be advised to adjust the diet and work and rest habits. In the diet can no longer drink alcohol, to eat less greasy, fried and other foods containing high cholesterol, to light food, pay attention to rest, avoid staying up late, appropriate to enhance exercise, but also conducive to the fatty liver receding.