In acute liver failure, there is a rapid loss of liver function, occurring in a person who has no pre-existing liver disease and develops within a very short period, usually days or weeks. Acute liver failure is an emergency that requires immediate hospitalization. The condition can result from various causes, including viral hepatitis, drug-induced liver injury, ingestion of toxic substances (such as an overdose of acetaminophen), or autoimmune diseases. Symptoms include jaundice, confusion, abdominal pain, and a tendency to bleed easily. The severity of acute liver failure can vary, ranging from mild impairment to severe, life-threatening illness. Treatment of acute liver failure focuses on addressing the underlying cause if known, and supporting the body’s functions until the liver can recover or until a liver transplant becomes necessary.