Hepatitis B

Hepatitis B: What You Need to Know

Hepatitis B is a viral infection affecting the liver. When left unmanaged, this condition may lead to significant liver complications including scarring, cancer, and organ failure. Understanding your hepatitis B diagnosis and the importance of ongoing care helps protect your liver health and overall wellbeing.

Understanding Hepatitis B Infection

This viral infection occurs when the hepatitis B virus enters your body and remains for at least six months. The virus may cause either short-term illness lasting weeks to months, or develop into a long-term condition requiring lifelong management.

While you may feel perfectly well, the virus can silently damage your liver. Without appropriate medical care, approximately one in four people with ongoing hepatitis B will develop serious liver complications over time.

Living with Chronic Hepatitis B

When test results indicate that antiviral medication would benefit your liver health, your gastroenterologist will discuss treatment options with you. Medications work by reducing viral levels in your bloodstream, minimising liver damage, and lowering cancer risk.

The virus can become dormant within liver tissue for extended periods. Because of this, stopping medication removes the protective effect, potentially allowing the virus to reactivate and cause illness. Most people continue hepatitis B medication long-term, similar to blood pressure management. While no permanent cure currently exists, ongoing medical research continues working towards this goal.

Signs Your Body May Show

Many people with hepatitis B experience no symptoms initially, which is why you might not realise you’re infected. Those who do develop signs may notice yellowing of the skin and eyes, dark-coloured urine, persistent tiredness, stomach discomfort, or loss of appetite. Some people also experience muscle aches, joint pain, nausea, or fever.

Symptoms typically appear two to three months after viral exposure and may persist for several weeks to months.

How Hepatitis B Spreads

The virus transmits through contact with infected blood and certain body fluids. Common transmission routes include mother-to-baby during birth, sharing injecting equipment or personal care items like razors or toothbrushes, unprotected sexual contact, and inadequately sterilised tattoo or piercing equipment.

In Australia, most people living with hepatitis B were born in countries with limited access to vaccination programmes. Routine vaccination now protects babies shortly after birth. You cannot catch hepatitis B through casual contact such as hugging, sharing meals, or being near someone who coughs or sneezes.

Regular Medical Monitoring

Everyone with chronic hepatitis B requires check-ups every six months. These appointments include blood testing to assess how well medication is working, whether viral levels are increasing, or if liver damage is developing. Once you reach older age and have lived with hepatitis B long-term, monitoring may also include liver ultrasound scans to detect cancer early.

Your local doctor or liver specialist can arrange these routine assessments. When cancer is detected early while still small, treatment and cure remain possible. Because liver cancer can progress rapidly, six-monthly ultrasound scans provide vital early detection.

Medical Treatment Approach

Not everyone with chronic hepatitis B requires immediate medication. Generally, people without current liver damage signs won’t need treatment straight away, though regular medical supervision remains essential to watch for changes.

Those with existing liver damage require close monitoring and may need antiviral medications to reduce long-term liver disease risk. Treatment also includes regular cancer screening. Antiviral therapy may continue throughout your life, and your gastroenterologist will guide you through these decisions based on your individual circumstances.

Protecting Your Family

Family members should have blood tests to determine whether they have hepatitis B or need vaccination. Those without hepatitis B can receive vaccination to prevent infection. Family members with hepatitis B should also have regular check-ups, though they may not need medication immediately if their viral activity remains low.

Supporting Your Liver Health

Several lifestyle measures help maintain liver strength. Attend your six-monthly check-ups consistently. Avoid drinking alcohol and consider stopping smoking. Eat a balanced, healthy diet in moderate amounts. Engage in enjoyable physical activity such as walking, swimming, or gentle exercise. If you take herbal remedies or traditional medicines, discuss these with your gastroenterologist as some may affect your liver.

Protecting Others from Infection

Important steps include ensuring close contacts and sexual partners are screened and vaccinated. Practice safe sex using condoms until partners are fully vaccinated and immune. Avoid donating blood, organs, or tissue. Cover cuts and wounds, cleaning any blood spills with bleach. Inform healthcare providers including dentists about your hepatitis B status.

Diagnosis and Testing

Blood tests diagnose hepatitis B infection. Because many people have no symptoms, they may never know they’re infected without testing. Screening is recommended for people at higher risk, including those who have injected drugs, men who have sex with men, people born in regions where hepatitis B is widespread, Aboriginal and Torres Strait Islander people, and those with HIV or hepatitis C.

If you believe you’ve been exposed to infected blood or body fluids, see your doctor immediately. Treatments given shortly after exposure can reduce infection risk.

Vaccination Protection

The hepatitis B vaccine provides safe and effective protection, working in 95 of every 100 vaccinated people. In Queensland, vaccination is funded for household and close contacts of people with hepatitis B, sexual contacts, migrants from hepatitis B endemic countries, Aboriginal and Torres Strait Islander peoples, people with chronic liver disease or hepatitis C, and people who inject drugs.

The vaccine is free under the National Immunisation Programme for babies within seven days of birth, and children at two, four, and six months. Eligible people under 20 years, and refugees of any age, can access free catch-up vaccination.

Health Outcomes Over Time

Most adults infected with hepatitis B will recover completely and develop lifelong protection, while approximately five in 100 will develop chronic infection. People infected at younger ages are more likely to develop lifelong infection.

Chronic hepatitis B is serious and may lead to liver failure, cirrhosis, cancer, or death. However, regular liver check-ups and treatment when recommended by your gastroenterologist can prevent these outcomes, allowing you to live a full and healthy life.

Pregnancy Considerations

All pregnant people should have hepatitis B blood testing in early pregnancy. If you have hepatitis B and are pregnant, treatments can reduce transmission risk to your baby. Your healthcare team will guide you through appropriate management during pregnancy.

When to Seek Help

If you think you’ve been exposed to infected blood or body fluids, seek medical attention immediately. For emergency situations, call 000. For 24/7 health advice, contact 13 HEALTH (13 43 25 84).

Additional support is available through:

• HepLink Australia on 1800 437 222
• National Hepatitis Infoline on 1800 437 222
• Hepatitis Queensland
• Hepatitis Australia, and
• Allgood.org.au for information in languages other than English

This information has been sourced and adapted from resources developed by Health Direct Australia, Queensland Government, and Gastroenterological Society of Australia (GESA).

Last reviewed: 06/02/2026