Fatty liver can be divided into mild fatty liver, moderate fatty liver and severe fatty liver according to the severity of the condition. The early stage of fatty liver will gradually progress to hepatitis or even cirrhosis if it is not controlled with attention. Fatty liver can easily develop liver inflammation, and mild fatty liver has a relatively good prognosis, so it must be controlled at the mild fatty liver stage, otherwise it may further develop into moderate to severe fatty liver and even the formation of cirrhosis. If it progresses to cirrhosis, it may also develop into liver cancer, so we must pay attention to the early management and treatment of this disease. Regular check-ups of liver function, blood lipids and liver ultrasound are needed to understand the severity of liver disease. If there is abnormal liver function then timely intervention and treatment is needed.