The study, prevention, diagnosis, and treatment of disorders that affect the pancreas, gallbladder, liver, and biliary tree are the focus of the medical specialty known as hepatology. The words "hepatitis" and "logia," which in Greek indicate liver and study, respectively, are the roots of the word "hepatology."
Globally, hepatitis affects millions of people and is linked to a number of unfavourable consequences, including liver cancer and liver transplants. Hepatitis B and C in particular are significant contributors to liver cancer, and alcohol consumption has been associated with catastrophic consequences including cirrhosis.
Around 350 million people are persistent carriers of the hepatitis B virus, which has infected over two billion people at some point. Hepatitis B incidence has dramatically decreased as a result of extensive vaccination and blood testing. Nevertheless, up to 80% of liver cancer cases are caused by hepatitis B and C.