Menu Healthy Lifestyle Diseases & Conditions First Aid Symptoms Tests & Procedures Videos Definitions FAQs Hepatitis AUpdated: 2017-06-13OverviewHepatitis A is a highly contagious liver infection caused by the hepatitis A virus. The condition spreads from contaminated food or water, or contact with someone who is infected.SymptomsSymptoms include fatigue, nausea, abdominal pain, loss of appetite, and low-grade fever.TreatmentsThe condition clears up on its own in 1 or 2 months. Rest helps. © 1998-2022 Mayo Foundation for Medical Education and Research(MFMER). All rights reserved. Terms of Use