Chronic Hepatitis B: Screening & Treatment Available (2025)

Chronic Hepatitis B

What Is Chronic Hepatitis B?

Chronic hepatitis B is a long-term infection of the liver caused by the hepatitis B virus (HBV), which persists for more than six months. It can lead to progressive liver damage, increasing the risk of scarring (fibrosis and cirrhosis), liver failure, and liver cancer. Unlike acute hepatitis B, which may resolve on its own, chronic infection requires ongoing medical monitoring and management to prevent complications.

Man clutching upper right abdomen in discomfort, suggesting symptoms of chronic Hepatitis B.

Stages of Chronic Hepatitis B

Chronic hepatitis B progresses through different stages depending on viral activity and the immune system’s response. While some individuals may remain stable for years, others may experience worsening liver damage over time. The main stages include:

  1. Immune Tolerant Phase – The hepatitis B virus (HBV) multiplies rapidly in the body, but the immune system does not attack it, resulting in little to no liver damage. This phase is more common in younger individuals.
  2. Immune Active Phase – The immune system recognises and attacks HBV-infected liver cells, leading to inflammation and potential liver scarring.
  3. Inactive Carrier State – The virus remains in the body but at very low levels, meaning there is little to no liver inflammation or damage. However, regular monitoring is still needed.
  4. Reactivation Phase – The virus becomes active again, increasing viral replication and triggering liver inflammation, which can lead to further complications.

Over time, repeated inflammation can cause extensive liver scarring (cirrhosis), increasing the risk of liver failure or liver cancer. Since chronic hepatitis B does not always follow a predictable disease progression, regular monitoring is essential to detect changes early and guide appropriate management.

Chronic Hepatitis B Symptoms

Many individuals with chronic hepatitis B experience no symptoms for years, but as liver damage progresses, they may develop:

  • Fatigue and weakness
  • Loss of appetite
  • Nausea or vomiting
  • Abdominal pain, particularly in the upper right side
  • Jaundice (yellowing of the skin and eyes)
  • Dark urine and pale stools
  • Unexplained weight loss
  • Swelling in the legs or abdomen (advanced cases)

Symptoms are more likely to appear or worsen in later stages of the disease, making regular screening important for early detection and timely management.

Asian woman checking for eye yellowing, a possible sign of jaundice from chronic Hepatitis B.

Chronic Hepatitis B Causes

Chronic hepatitis B develops from a long-term infection with the hepatitis B virus, which can be transmitted through:

  • Mother-to-child transmission – This is the most common cause of chronic hepatitis B, occurring when an infected mother passes the virus to her baby during childbirth. Because newborns and young children are more vulnerable, they have a significantly higher chance of developing chronic infection.
  • Unprotected sexual contact – HBV can spread through bodily fluids, including blood, semen, and vaginal secretions.
  • Sharing needles or syringes – Individuals who use injectable drugs or receive unsafe medical injections are at higher risk.
  • Household transmission – Sharing personal items like razors or toothbrushes with an infected person can increase the risk.
  • Blood transfusions and medical procedures – Although rare in countries with strict screening, HBV can be transmitted through contaminated blood products.

Chronic Hepatitis B Diagnosis & Tests

Diagnosis of chronic hepatitis B involves blood tests and imaging to assess liver function, the extent of liver damage, and the level of virus present in the body.

  • Hepatitis B Surface Antigen (HBsAg) Test – Detects the presence of hepatitis B virus (HBV) in the blood, indicating an ongoing infection.
  • Hepatitis B e Antigen (HBeAg) and Hepatitis B e Antibody (HBeAb) Test – Determines whether the virus is actively replicating, which can influence disease progression and treatment decisions.
  • HBV DNA Test – Measures the amount of viral DNA in the blood to assess the severity of the infection and monitor response to treatment.
  • Liver Function Tests (LFTs) – Evaluates liver enzyme levels, including alanine aminotransferase (ALT) and aspartate aminotransferase (AST), which indicate liver inflammation. Elevated levels may suggest active liver damage.
  • Imaging Tests – Liver elastography, ultrasound, or MRI help assess liver stiffness, detect scarring, and monitor disease progression. In some cases, a liver biopsy may be required for a more detailed assessment of liver damage.
Hepatitis B test result and sample vial showing diagnostic markers for chronic infection.

To differentiate between acute and chronic infection, the hepatitis B surface antigen (HBsAg) test must be persistently positive for at least six months before a chronic diagnosis is confirmed.

Treatment & Management of Chronic Hepatitis B

While chronic hepatitis B has no definitive cure, treatment aims to control viral replication, prevent liver damage, and reduce the risk of complications.

Treatment Approach Purpose
Antiviral Medications
  • Antiviral drugs like entecavir, tenofovir, and lamivudine help reduce viral load, slow disease progression, and lower the risk of liver damage.
Regular Monitoring
  • Lifelong follow-up with liver function tests, HBV DNA testing (every 3 to 6 months), and imaging (such as ultrasound every 6 to 12 months) helps detect early signs of cirrhosis or liver cancer, enabling timely intervention.
Lifestyle Modifications
  • Avoiding alcohol and medications that can harm the liver, such as certain painkillers, helps prevent further liver damage.
  • Maintaining a rich in fruits, vegetables, whole grains, and lean proteins supports liver function by providing essential nutrients and antioxidants.
  • Regular exercise improves overall health and immunity, reducing the risk of complications.
Vaccination and Preventive Measures
  • Hepatitis B vaccination protects uninfected individuals from contracting the virus.
  • Screening household members and sexual contacts for hepatitis B to help prevent transmission.

Hepatitis B Screening Price in Singapore

At ATA Medical, we provide screening for hepatitis B and if required, treatment for chronic or acute infections. Our prices are as follows:

Test Price*
Consultation From $38.15
Blood Tests
HEP 1 Profile
Hepatitis B Surface Antigen (HBsAg), Hepatitis B Surface Antibody (HBsAb)
$21.80
HEP 5 Profile
Hepatitis B Surface Antigen (HBsAg), Hepatitis B Surface Antibody (HBsAb), Hepatitis B e Antigen (HBeAg), Hepatitis B e Antibody (HBeAb), Alpha-Fetoprotein (AFP), ALT/SGPT, AST/SGOT, Gamma GT (GGT)
$87.20
Liver Function Test A
Total Bilirubin, Alkaline Phosphatase [ALP], ALT/SGOT, AST/SGPT, Gamma GT
$30.52
Liver Function Test B
Total Bilirubin, Alkaline Phosphatase [ALP], ALT/SGOT, AST/SGPT, Gamma GT, Total Protein, Albumin, Globulin, A/G Ratio
$34.88
Liver Function Test C
Total Bilirubin, Alkaline Phosphatase [ALP], ALT/SGOT, AST/SGPT, Gamma GT, Total Protein, Albumin, Globulin, A/G Ratio, LDH, Hepatitis Bs Antigen & Antibody, Hepatitis A Total IgG, Alpha Fetoprotein [AFP]
$91.56
Imaging Tests
Ultrasound Liver $150.42
Ultrasound Liver Elastography $196.20
MR Liver Elastography $566.80
MRI Abdomen (Kidney, Liver, Pancreas, Gallbladder & Spleen) $1471.50
CT Liver (with contrast) $1122.70
Vaccinations
Engerix-B® (Hepatitis B) $54.50 / dose
Twinrix® (Hepatitis A & Hepatitis B) $119.90 / dose
Havrix® (Hepatitis A) $98.10 / dose
*Prices are NETT and inclusive of GST.

Conclusion

Chronic hepatitis B is a lifelong condition that requires early detection, regular monitoring, and proper management to prevent complications such as liver cirrhosis and cancer. While there is no cure, available treatments can help control the virus, protect liver function, and improve long-term health outcomes.

At ATA Medical, we provide comprehensive hepatitis B screening and personalised treatment plans to help you manage your condition with confidence. Schedule your hepatitis B screening with us today.

Why Choose ATA Medical?

ATA Medical – One-Stop Health Screening Clinic With X-ray, CT Scan, Mammogram and Ultrasound scans.
ATA Medical – One-Stop Health Screening Clinic With X-ray, CT Scan, Mammogram and Ultrasound scans.
ATA Medical Orchard Clinic with Health Screening Nurses and Staff
Orchard Clinic
ATA Medical Tanjong Pagar Clinic with Health Screening Nurses and Staff
Tanjong Pagar Clinic
Patient having a health screening review with Dr Jana Lim of ATA Medical
Health Screening Review with Dr Jana Lim
Female patient undergoing ultrasound scan procedure at ATA Medical Clinic.
Mammograms & Ultrasound Scans with Female Staff
Female patient getting ready to undergo X-Ray procedure with a male staff assisting with the preparations.
One-Stop Clinic with X-Ray Facilities
Dr Leonard Leng of ATA Medical having a consultation session with a male patient.
Consultation About Men or Female Health With a Doctor of Your Choice

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Frequently Asked Questions (FAQs)

Acute hepatitis B is a short-term infection that occurs within the first six months after exposure to the hepatitis B virus (HBV). In many cases, the immune system clears the infection without long-term effects. Chronic hepatitis B, on the other hand, is a persistent infection lasting more than six months, increasing the risk of liver damage, scarring (fibrosis and cirrhosis), and liver cancer. If you test positive for hepatitis B, it is important to follow-up with your doctor and for proper evaluation and management.
Life expectancy with chronic hepatitis B varies depending on disease progression and management. Many individuals with well-controlled chronic hepatitis B and no significant liver damage can live a normal lifespan. However, untreated or advanced cases with cirrhosis or liver cancer can significantly reduce life expectancy. Regular monitoring, antiviral treatment, and lifestyle modifications can help prevent complications and improve long-term health outcomes.
Chronic hepatitis B is contagious and can spread through direct contact with infected blood and bodily fluids, including during childbirth, unprotected sexual contact, sharing needles, and unsafe medical procedures. However, it does not spread through casual contact such as hugging, sharing food, or touching surfaces. Vaccination is the most effective way to prevent hepatitis B transmission. Individuals living with chronic hepatitis B should take precautions to minimise the risk of spreading the virus.
There is currently no definitive cure for chronic hepatitis B, but antiviral treatments can effectively suppress the virus, reduce liver damage, and lower the risk of complications. Some individuals may achieve long-term viral suppression, while others may experience a functional cure, where the virus becomes undetectable. Ongoing research is exploring new therapies, but for now, regular monitoring and treatment remain essential for managing chronic hepatitis B. It is best to consult a doctor to help determine the best treatment approach to managing the condition.
Yes, many individuals with chronic hepatitis B live long and healthy lives, especially with proper medical management. Regular monitoring, antiviral treatment when necessary, and a healthy lifestyle can help prevent complications such as cirrhosis (extensive scarring) and liver cancer. Early detection and proactive care play a key role in maintaining long-term health.
Acute hepatitis B is usually cleared by the immune system within six months, but there is no way to "flush out" the virus once chronic infection has developed. While antiviral medications can help control viral replication and reduce liver inflammation, they do not eliminate the virus completely. Supporting liver health through a balanced diet, avoiding alcohol, and following a doctor’s treatment plan can help prevent further damage. For those not yet infected, vaccination remains the most effective form of prevention.
Chronic hepatitis B is not immediately life-threatening, but if left unmanaged, it can lead to serious complications such as cirrhosis, liver failure, and liver cancer, which can be fatal. The risk varies based on viral activity, liver health, and individual factors. Regular medical check-ups, antiviral treatment, and lifestyle modifications can significantly reduce the likelihood of severe outcomes.
Yes, you can marry someone with hepatitis B, as the virus is not spread through casual contact. Vaccination is the most effective way to prevent transmission and is recommended for partners of individuals with hepatitis B. Using protection during sexual activity and having regular medical check-ups help monitor liver health and allow for early intervention if needed. Consulting a doctor about preventive measures can further support a healthy relationship.
Hepatitis B can remain in the blood permanently if it becomes a chronic infection, meaning it persists for more than six months. While some individuals can suppress the virus to undetectable levels with treatment, the hepatitis B virus (HBV) integrates into liver cells, making complete elimination unlikely. Regular monitoring and antiviral therapy can help manage the infection and reduce the risk of complications.
If you have hepatitis B, it is advisable to avoid alcohol, processed foods high in sugar or unhealthy fats, and foods high in salt, which can strain liver function. Reducing intake of fried and highly processed foods can help prevent further liver damage. Additionally, individuals with advanced liver disease should be cautious with raw seafood due to the risk of infections. Consulting a doctor or dietitian can help tailor dietary recommendations based on your specific liver condition.
Hepatitis B is considered chronic if the hepatitis B surface antigen (HBsAg) remains detectable in the blood for more than six months. Blood tests can assess viral load, liver enzyme levels, and overall liver function. If you are unsure about your status, consulting a doctor for a screening test and follow-up evaluation can confirm whether your infection is acute or chronic.
Hepatitis B spreads through contact with infected blood and bodily fluids. It can be transmitted from mother to child at birth, through unprotected sexual contact, sharing needles, or medical procedures involving contaminated equipment. In some cases, household transmission can occur if personal items such as razors or toothbrushes are shared. If you are not vaccinated, screening and immunisation can help prevent infection.
A healthy diet for hepatitis B patients includes nutrient-rich foods that support liver function, such as fruits, vegetables, whole grains, lean proteins, and healthy fats from sources like nuts and olive oil. Foods rich in antioxidants, such as leafy greens and berries, may help reduce liver inflammation. Maintaining a well-balanced diet and staying hydrated can support overall liver health. Consulting a doctor or dietitian can provide personalised dietary recommendations.
Acute hepatitis B is usually cleared by the immune system within six months in most healthy adults. However, if the infection persists beyond this period, it is considered chronic and typically remains lifelong. While antiviral treatments can suppress the virus and reduce the risk of complications, there is currently no complete cure for chronic hepatitis B. Regular medical monitoring and treatment can help maintain long-term liver health.
Yes, hepatitis B is not spread through casual contact such as hugging, sharing meals, or touching surfaces. The virus is transmitted only through direct contact with infected blood or bodily fluids. Taking precautions, such as avoiding shared personal items that may have blood exposure, can further reduce the risk of transmission. The most effective protection is vaccination, which provides lifelong immunity.
Research suggests that coffee consumption may have protective effects on liver health, potentially reducing the risk of liver fibrosis and liver cancer in individuals with hepatitis B. However, excessive caffeine intake can have other health effects, so moderation is advised. Consulting a doctor can help determine the best dietary approach based on your overall liver condition.