Hepatitis is any inflammation of the liver. There are several types of viral hepatitis, or it can be caused by excessive alcohol consumption, drugs, sharing dirty needles, untested blood transfusion, autoimmune conditions, or hereditary conditions. The symptoms and severity differ as it depends on how badly the liver is damaged. Symptoms of mild types include fatigue and loss of appetite, while severe cases can cause flu-like symptoms, enlarged liver and spleen, jaundice, dark urine, putty white-colored stools, diarrhea, heaviness in the right upper abdomen, and arthritis. Patients often need to be hospitalized in the early, acute phase of the illness.