Liver area generally refers to the right upper abdomen, the cause of fever in the liver area may be chronic active hepatitis, liver abscess, biliary system diseases, etc.. 1. Chronic active hepatitis: Patients with chronic active hepatitis will have symptoms mainly in the digestive system, such as nausea, abdominal distension, diarrhea, etc., but some patients may also have fever in the liver area. 2. Liver abscess: its main symptoms are fever, right upper abdominal pain, may be accompanied by nausea, vomiting, lack of appetite. When there is a strong localized inflammatory reaction in the liver, it may also cause fever in the liver area and even lead to generalized fever. 3. Biliary system diseases: such as gallbladder stone obstruction, cholecystitis caused by bacterial infection, in the acute attack can be manifested as right upper abdominal pain, fever, nausea and vomiting, some patients may also have fever in the liver. Liver fever may also have other causes, it is recommended to go to the hospital in a timely manner, improve the examination to determine the cause of the disease, and then give targeted treatment or standardized treatment.