Liver dysfunction is more serious. Liver dysfunction is a syndrome of abnormal liver function caused by massive necrosis of liver cells under the influence of hepatitis virus infection, chemical poisoning such as mercury, arsenic poisoning, immune system abnormality, tumor and other causes. Liver insufficiency is more serious. The main symptoms include gastrointestinal symptoms such as lack of food, nausea, vomiting, anorexia, abdominal distension, abdominal pain, etc., abnormal liver function symptoms such as coagulation disorders, hepatic palms, spider nevus, etc., and skin symptoms such as jaundice. The main treatment is to control the primary disease such as antiviral (e.g., entecavir, etc.), and to give drugs to protect the function of hepatocytes (e.g., magnesium isoglycyrrhizinate, polyenylphosphatidylcholine, etc.) to carry out the treatment. Severe liver insufficiency requires liver transplantation. It is recommended to consult a doctor as soon as possible if you have any liver disease to avoid delay, and medications should be applied under the guidance of a doctor.