The dangers of fatty liver include damaging liver cells, inducing or aggravating diabetes, and causing the formation of atherosclerosis. If a patient develops severe fatty liver and does not actively take treatment, it will gradually progress to cirrhosis. Fatty liver is caused by excessive accumulation of fat in liver cells and steatosis, which may cause liver cell damage, leading to liver fibrosis and cirrhosis. Fatty liver affects the body’s metabolic function, leading to weakened metabolism of sugar by the liver and inducing or aggravating diabetes. Patients with fatty liver generally have higher blood viscosity and slower blood flow, which can easily lead to the formation of atherosclerosis. Mild fatty liver suggests that the patient is unhealthy, but usually has no obvious effect on the body or asymptomatic, more physical examination found, it is recommended to timely control weight, reduce high-fat diet, more exercise, more use of vegetables and fruits, and other ways to intervene. However, if patients develop severe fatty liver and do not actively cooperate with doctors to take treatment, it will gradually progress to cirrhosis of the liver The time for fatty liver to progress to cirrhosis is uncertain, and it is related to individual differences, underlying diseases, severity, duration and other factors. It is recommended that patients with fatty liver should go to the hospital in time for early detection, early intervention and treatment so as to avoid delaying the condition.