The study of the liver, gallbladder, biliary tree, and stomach as well as the treatment of their diseases fall within the field of medicine known as hepatology. Despite being historically regarded as a branch of gastroenterology, hepatology is now a separate field of medicine in some nations due to rapid expansion.  The major causes for consulting a specialist are illnesses and side effects connected to alcohol and viral hepatitis. Lower infection rates are anticipated in the future with the deployment of vaccinations on a larger scale and thorough screening procedures prior to blood transfusion.