A variety of human subhealth symptoms are caused by fatty liver, such as upper abdominal discomfort, anorexia, bloating, nausea, vomiting, indigestion, and diarrhea at the slightest improper diet. Many patients also develop nosebleeds, bleeding gums, intermittent purpura of the skin and varying degrees of anemia. Some patients have long-standing peripheral neuritis, keratitis, hyperkeratosis of the skin, etc., but have been unable to figure out what the cause is. More notably, patients with fatty liver have relatively low immune function and hormone metabolism disorders in the body, which manifest themselves as irregular menstruation or amenorrhea in women and mainly as hypogonadism in men. Fatty liver patients often have hyperlipidemia and increased blood viscosity, in which low-density lipoprotein (LDL), because of its very small molecular weight, easily crosses the inner membrane of arteries and settles in the wall of blood vessels, causing arteries to become less elastic, narrower and less flexible, which eventually leads to blood circulation disorders and rupture of blood vessels, endangering lives. Hazard No. 2: induce or aggravate hypertension, coronary heart disease arteriosclerosis and hypertension, coronary heart disease is very close, research shows that alcoholic fatty liver patients combined with hypertension, coronary heart disease, easily lead to sudden death due to myocardial infarction. Hazard No. 3: Encephalopathy fatty liver syndrome Mainly diffuse cerebral edema and severe hepatic steatosis with enlarged liver and firm texture. It is accompanied by significant cerebral symptoms: convulsions, progressive disorders of consciousness and even coma, with a morbidity and mortality rate of 70-80%. The fourth danger: lead to cirrhosis or even liver cancer The final result of various liver diseases is often cirrhosis, and fatty liver is no exception, and the chance of cirrhosis secondary to hepatocellular carcinoma is high. Liver cirrhosis is divided into compensated and decompensated stages. Once cirrhosis develops to the decompensated stage, liver coma, liver ascites, gastrointestinal hemorrhage, liver failure, liver and kidney syndrome are likely to occur, which is not far from the end of life. Hazard No. 5: Causes acute heavy hepatitis This disease is also known as obstetric acute yellow liver atrophy, which is a rare and dangerous prognosis of pregnancy complications. The clinical manifestations are often similar to those of acute severe hepatitis, which can lead to acute liver failure, pancreatitis, renal failure, systemic coagulation abnormalities and rapid death, mostly in pregnant women in their first pregnancy. Typical cases present with an acute onset of illness with nausea, vomiting, epigastric pain, back pain, varying degrees of hypertension, edema, progressive worsening of jaundice, coma, ascites, large skin petechiae, blood in stool and blood in urine within a short period of time. Once the diagnosis is clear, the pregnancy should be terminated immediately, which is the only effective way. If we wait until the late stage of liver failure, coagulation dysfunction, and then perform caesarean section or induction of labor, postpartum hemorrhage may occur, endangering the lives of mother and child. Diabetes is a chronic systemic metabolic disease of unknown etiology, mainly due to insufficient insulin secretion or insulin resistance and the formation of glucose metabolism disorders, which is characterized by hyperglycemia, hyperlipidemia and hyperaminoacidemia. According to the survey, about 50% of diabetic patients are combined with fatty liver, and about 30-40% of fatty liver patients are combined with diabetes. The blood glucose level of fatty liver patients is significantly higher than normal, and obese fatty liver patients with blood glucose concentration above normal level are generally considered to be pre-diabetic, although they have not reached the diagnostic criteria of diabetes. Fatty liver and diabetes mellitus are a pair of difficult brothers and sisters, and having both will make the treatment more difficult and accelerate the development of the disease.