Liver Disease: The Basics

Your liver is essential to your life. Learn about the liver’s important functions.

Autoimmune Disorders Primary Sclerosing Cholangitis (PSC) Primary Biliary Cholangitis (PBC) Autoimmune Hepatitis (AIH) Autoimmune Sclerosing Cholangitis (ASC) Medically reviewed on April […]

MetALD (Met+ALD; Met-ALD; metabolic with alcohol-associated liver disease) (See also sections on MASLD and MASH) Last updated on December 11th, 2025 […]

Learn about steatotic (fatty) liver disease, including metabolic dysfunction-associated steatotic liver disease (MASLD) and its advanced form, metabolic dysfunction-associated steatohepatitis (MASH), their causes and key statistics.

Learn about the most common forms of hepatitis, how it affects liver function and related data.

Find information about liver cancer, also called hepatocellular carcinoma (HCC), its causes, risk factors and related facts.

Find information about the most common liver diseases and conditions affecting children.

There are many types of rare liver diseases. Find information and statistics about the most common forms.

Find information and statistics about liver transplant in the U.S.