Liver failure occurs when a major part of the liver has been damaged and it is no longer able to function. This condition may be either acute or chronic. Acute liver failure is usually caused by Hepatitis A, B and C, drug toxicity and food poisoning. Chronic liver failure is caused by Hepatitis B and C, alcoholism, cirrhosis, malnutrition and metabolic disorders. Early symptoms include nausea, loss of appetite, fatigue, and diarrhea. Late symptoms include jaundice, easy bleeding, abdominal swelling, mental disorientation, sleepiness and coma. Treatment is usually supportive. Prevention and removal of the known cause are very important.