How long you can live with fatty liver is mainly related to the severity of the disease and the individual patient’s condition, which should be analyzed on a case-by-case basis and should not be generalized. Most fatty liver has a good prognosis and has no effect on survival. Fatty liver is a benign metabolic disease, mainly due to excessive intake of fat and calories resulting in the accumulation of energy in the body. If the fatty liver is purely mild, it has no significant impact on life expectancy and can be improved by diet control, moderate exercise, and lifestyle changes, which generally lead to long-term survival. If the disease progresses uncontrolled to severe fatty liver, patients often have a combination of hepatitis symptoms, poor nutrition, nausea, vomiting, indigestion and other symptoms, and most patients can survive for a long time. If the disease progresses further to the decompensated stage of cirrhosis, symptoms of portal hypertension and other complications can occur, which may be life-threatening at any time. Patients with fatty liver need to pay attention to a reasonable diet in their daily life, avoiding the intake of excessive oil and stimulating foods. The disease and maladjustment are found to be actively treated in order to slow down the disease progression as early as possible.