There are many typical symptoms of liver damage, not necessarily five, which generally include digestive tract symptoms, jaundice, bleeding tendency, and so on. 1. Digestive symptoms: the venous return of the digestive tract enters the liver through the portal vein, and the absorbed nutrients are metabolized and transformed in the liver. Impaired liver function will cause a series of gastrointestinal symptoms, including loss of appetite, poor appetite, nausea, vomiting, anorexia, abdominal distension and so on. 2. Jaundice: the liver is an important part of bilirubin metabolism. When liver function is impaired, the ability of the liver to process bilirubin decreases, and the elevated level of bilirubin in the blood causes yellowing of the skin and mucous membranes, which is known as hepatocellular jaundice. 3. Bleeding tendency: liver is an important place for coagulation factor synthesis, when liver insufficiency reduces the synthesis of coagulation factor, patients will have different degrees of bleeding tendency, such as bleeding from the mouth and gums, nosebleed, skin and mucous membrane in spots, female menstruation increase, and so on. 4. Endocrine disorders: Liver is the place where many hormones are inactivated, and the inactivation of hormones is weakened when liver insufficiency occurs, and a series of endocrine disorders will occur, such as gynecomastia, testicular atrophy, irregular menstruation and amenorrhea in women, and so on. In addition to the above symptoms, liver dysfunction may also present other symptoms such as malnutrition, fatigue, emaciation, ascites, vomiting of blood, etc., and the manifestation varies from patient to patient. Patients are advised to go to the hospital as soon as possible for prompt treatment to avoid further deterioration of liver function.