Fatty liver is not a disease and it does not matter if you look at it or not. With the increase in the detection rate of fatty liver in the surrounding population, people have become dismissive of it and always consider it to be a sub-healthy state at best, not a real disease that needs no treatment at all. So is fatty liver a disease or not, and should it be treated? Non-alcoholic fatty liver is a chronic disease closely related to lifestyle behaviors for three reasons: 1. At least 20% of non-alcoholic fatty liver is non-alcoholic steatohepatitis rather than simple fatty liver, and non-alcoholic steatohepatitis is now clearly an important pre-cancerous lesion of cryptogenic cirrhosis and liver cancer, and is a rare cause of liver failure; 2. Even if it is simple fatty liver, fatty liver is more vulnerable than normal liver It is more vulnerable to drugs, industrial toxins, alcohol, ischemia and viral infections, leading to a higher incidence of other types of liver disease, and fatty liver as a donor liver for liver transplantation is very likely to transplantation liver non-functional; 3, for overweight and obese people, the appearance of fatty liver may indicate “malignant obesity”, because such people For overweight and obese people, the appearance of fatty liver may indicate “malignant obesity”, because such people are prone to hyperlipidemia, diabetes and hypertension, and eventually the probability of coronary heart disease and stroke will be significantly increased. 4, viral hepatitis combined with fatty liver, will increase the difficulty of antiviral treatment, affecting the effectiveness of treatment. For this reason, whether from the perspective of liver disease or from the prevention and treatment of diabetes and cardiovascular diseases, non-alcoholic fatty liver should be considered a disease, and its scientific naming should be non-alcoholic fatty liver disease. Therefore, even asymptomatic fatty liver found in health checkups should not be taken lightly and should be promptly treated in a hospital.