Hepatitis A

Medically ReviewedOften Asymptomatic

Hepatitis A is a viral liver infection that usually resolves within a few months without lasting damage. It can be detected with a blood test and is prevented with a safe, effective vaccine. Unlike hepatitis B and C, hepatitis A does not become chronic.

Hepatitis A: Key Facts

Often Asymptomatic
Incubation Period
15–50 days (average 28 days)
Test Window
2–4 weeks post-exposure
Results
24–48 hours
Book Hepatitis A Test – £89

Results within 24 hours • Same-day treatment available

Symptoms of Hepatitis A

Common Symptoms

  • Fatigue and malaise
  • Nausea and vomiting
  • Abdominal pain (upper right side)
  • Jaundice (yellowing of skin and eyes)
  • Dark urine and pale stools
  • Loss of appetite
  • Fever

How is Hepatitis A Transmitted?

  • Faecal-oral route (contaminated food or water)
  • Oral-anal sexual contact (rimming)
  • Close personal contact with an infected person
  • Sharing needles

Prevention

  • Hepatitis A vaccination (highly effective)
  • Good hand hygiene
  • Avoid untreated water in endemic areas
  • Use dental dams during oral-anal contact

Complications if Untreated

  • Rarely, fulminant hepatitis (acute liver failure)
  • Prolonged illness lasting several months
  • Relapsing hepatitis

Frequently Asked Questions

Dr Mohammad Bakhtiar
Medically Reviewed

Dr Mohammad Bakhtiar

MD, PhD, LRCP, MSc, DHMSA

Sexual Health

GMC: 4694470Last reviewed: January 2026

All medical content is reviewed by qualified healthcare professionals registered with the General Medical Council (GMC).

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