Hepatitis is an inflammation of the liver primarily caused by viral infections, and it manifests in several forms, including types A, B, C, D, and E, as well as non-viral forms such as alcoholic and autoimmune hepatitis. Symptoms typically include fatigue, jaundice, and abdominal pain, with transmission routes varying by type, such as fecal-oral for hepatitis A and blood contact for hepatitis B and C. Diagnosis involves medical history, blood tests, imaging studies, and potential liver biopsy, while treatment focuses on supportive diet, herbal remedies, and detoxification methods to promote liver health.