The monograph presents current data on the etiology, pathogenesis, clinic, diagnosis and treatment of acute and chronic hepatitis of various nature (viral, alcoholic, autoimmune, etc.). Considerable attention is also paid to the diagnosis and treatment of the consequences of hepatitis - cirrhosis of the liver and their complications (ascites, bleeding from esophageal varices, hepatic endephalopathy). The book reflects the latest advances in diagnosis (molecular biology methods) and modern treatments (interferon therapy) for liver disease. The publication is intended for doctors - therapists, gastroenterologists, surgeons, endoscopists and is of interest to scientists dealing with the problems of gastroenterology and hepatology.