Acute liver failure is loss of liver function that occurs rapidly — in days or weeks — usually in a person who has no preexisting liver disease. It’s most commonly caused by a hepatitis virus or drugs, such as acetaminophen. Acute liver failure is less common than chronic liver failure, which develops more slowly.
Acute liver failure causes fatigue, nausea, loss of appetite, discomfort on your right side, just below your ribs, and diarrhea. Acute liver failure is a serious condition. It requires medical care right away. If treatments are not effective, you may be a candidate for a liver transplant.
Many people recover from liver failure with treatment. If a transplant is necessary, most patients go back to their daily activities within 6 months. People who have received a transplant need lifelong medical care, including medications to prevent their body from rejecting the new organ.