Liver function abnormalities occur when the liver is subjected to various pathogenic factors that cause damage to the liver cells and obstruction of the bile ducts. Liver function abnormalities can be seen in physiological factors such as irregular diet, staying up late, smoking and drinking, as well as pathologic factors such as viral infections, parasitic infections, pharmacological damage and autoimmunity. Liver function test indicators include aminotransferase, serum serum protein, plasma coagulation factor, cholesterol, bilirubin, etc. Due to abnormal liver function, patients will have hepatocellular damage, decreased liver synthesis function and decreased bilirubin metabolism. The above indicators can be used to assess the degree of liver function impairment. For mild liver function abnormalities, patients may have no symptoms or only symptoms such as abdominal discomfort, fatigue, indigestion, etc. Liver function tests are normal or mildly abnormal. If the liver function abnormality exceeds liver compensation, the patient’s symptoms are more obvious: the liver is subjected to a variety of various damage factors, liver function abnormality will occur, and if not treated in time, liver function failure will occur, and a variety of complications (hepatic encephalopathy, hepatorenal syndrome, etc.) will occur. When abnormal liver function is detected, it is recommended to consult a doctor in time, who will comprehensively determine the severity of the disease and the next treatment plan based on the medical history, signs and symptoms, as well as other auxiliary examinations, so as to avoid delaying the condition.