Explain the condition called liver inflammation.?

Hepatitis. Inflammation of the liver is called hepatitis and there are many causes: alcohol, drugs / medications, viral infections (hepatitis a, b, c), autoimmune disorders (autoimmune hepatitis, primary sclerosing cholangitis, primary biliary cirrhosis), and metabolic disorders (non-alcoholic fatty liver dz, wilson dz, hemochromatosis, alpha-1 antitrypsin deficiency. Important to see a hepatologist.
Bruised Liver. Inflammation or bruising to the liver is similar to having a burn. Some burns heal with a scar and others don't. Similarly inflammation of the liver by alcohol, drugs, hepatitis from many causes can result in long term scarring.
Hepatitis. Inflammation of the liver is referred to as hepatitis. Most commonly it is due to viral infections, e.g., hep a, hep b, hep c, epstein barr virus, cytomegalo virus. Bacteria and parasites can also cause hepatitis. Alcoholic injury can induce hepatitis as well. Hepatic inflammation may result from chemical injury as well, e.g., carbon tetrachloride, mushrooms etc.