Hepatitis B

The liver is one of the most vital organs of the human body, responsible for detoxification, metabolism, and storing essential nutrients. However, when the liver is attacked by viruses, its functions can be severely compromised. One such virus is the Hepatitis B virus (HBV), which causes Hepatitis B, a potentially life-threatening liver infection.

According to the World Health Organization (WHO), nearly 254 million people were living with chronic Hepatitis B infection in 2022, with over 1.1 million deaths annually due to complications such as cirrhosis and liver cancer. Despite these alarming figures, Hepatitis B is a preventable and manageable disease if detected early.

In this blog, we’ll explore everything you need to know about Hepatitis B—its causes, symptoms, modes of transmission, risk factors, diagnostic methods, treatment approaches, and prevention strategies.

What is Hepatitis B?

It is a viral infection caused by the Hepatitis B virus (HBV) that primarily attacks the liver. It can lead to acute (short-term) or chronic (long-term) infection depending on how the body responds.

• Acute: Develops within the first 6 months after exposure. Some people recover completely, while others progress to chronic infection.

• Chronic: A long-lasting infection that increases the risk of liver cirrhosis, liver failure, and hepatocellular carcinoma (liver cancer).

Causes of Hepatitis B

The main cause of Hepatitis B is infection with HBV, which spreads through contact with infected blood, semen, or other body fluids.

Modes of Transmission:

1. Mother-to-child (perinatal transmission) – Common in regions with high HBV prevalence.

2. Unprotected sexual contact – With an infected person.

3. Sharing of contaminated needles and syringes – Particularly among IV drug users.

4. Blood transfusions or organ transplants – Rare today due to strict screening.

5. Direct contact with open sores or wounds – Exposure to infected blood.

6. Healthcare exposure – Needle-stick injuries in medical settings.

Symptoms of Hepatitis B

Not everyone infected with Hepatitis B develops symptoms. Some remain asymptomatic, especially in the early stages.

Common Symptoms Include:

• Fever

• Headache

• Fatigue and weakness

• Loss of appetite

• Nausea and vomiting

• Jaundice (yellowing of skin and eyes)

• Dark urine

• Pain in the right side of the abdomen

• Joint pain

• Hives or skin rashes

In chronic cases, symptoms may not appear until significant liver damage has occurred.

Risk Factors for Hepatitis B

Some groups of people are at higher risk of contracting HBV, such as:

• Infants born to infected mothers

• People with multiple sexual partners

• Healthcare workers exposed to blood

• Intravenous drug users

• People undergoing dialysis

• Individuals receiving frequent blood transfusions

• Residents of regions with high HBV prevalence (Asia, Africa)

Diagnosis of Hepatitis B

Early diagnosis is crucial to prevent complications. Diagnostic methods include:

1. Blood Tests

   • HBsAg (Hepatitis B surface antigen): Detects active infection.

   • Anti-HBs (Hepatitis B surface antibody): Indicates immunity.

   • HBV DNA test: Measures viral load.

2. Liver Function Tests (LFTs)

   • Checks levels of liver enzymes (ALT, AST) to assess liver damage.

3. Imaging Tests

   • Ultrasound or FibroScan to detect cirrhosis or liver scarring.

4. Liver Biopsy

   • Helps in assessing the extent of liver damage.

Complications of Hepatitis B

If left untreated, Hepatitis B can progress to:

• Chronic liver disease

• Liver cirrhosis (scarring of liver tissue)

• Liver cancer (hepatocellular carcinoma)

• Liver failure

These complications highlight the importance of early detection and timely treatment.

Treatment of Hepatitis B

1. Acute Hepatitis B

Most healthy adults with acute Hepatitis B do not need specific treatment. Supportive care such as hydration, rest, and proper nutrition help in recovery.

2. Chronic Hepatitis B

Long-term treatment may be necessary to reduce liver damage and prevent complications. Options include:

• Antiviral Medications

  • Tenofovir, Entecavir, Lamivudine

  • Help suppress the virus and slow disease progression.

• Interferon Injections

  • Stimulate the immune system to fight the virus.

• Liver Transplant

  • In cases of liver failure or advanced cirrhosis.

Prevention of Hepatitis B

Prevention is the most effective way to control the disease.

Key Preventive Measures:

1. Hepatitis B Vaccination

   • Highly effective and safe.

   • Given in 3–4 doses starting at birth.

2. Safe Sexual Practices

   • Use condoms to reduce transmission risk.

3. Avoid Sharing Needles or Razors

   • Prevents blood-borne infections.

4. Screening of Blood Donations

   • Essential to prevent transfusion-related transmission.

5. Protective Measures for Healthcare Workers

   • Use gloves, masks, and safe needle disposal practices.

Lifestyle Tips for People with Hepatitis B

• Avoid alcohol as it accelerates liver damage.

• Eat a balanced diet rich in vegetables, fruits, and lean protein.

• Stay physically active but avoid extreme fatigue.

• Get regular liver function tests.

• Take medications exactly as prescribed by your doctor.

Hepatitis B vs. Other Types of Hepatitis

• Hepatitis A: Spread through contaminated food/water, usually acute.

• Hepatitis C: Bloodborne infection, often chronic, no vaccine available.

• Hepatitis D: Only occurs in people already infected with HBV.

• Hepatitis E: Spread through contaminated water, usually acute.

Frequently Asked Questions (FAQ)

Q1: Is Hepatitis B curable?
Hepatitis B cannot be completely cured, but antiviral treatments can effectively control the virus and prevent complications.

Q2: Can Hepatitis B be prevented by vaccination?
Yes, the Hepatitis B vaccine is 95% effective in preventing infection.

Q3: Is Hepatitis B contagious through casual contact?
No. HBV is not spread through casual contact, hugging, or sharing food.

Q4: What is the difference between acute and chronic Hepatitis B?

• Acute: Short-term infection, some recover completely.

• Chronic: Long-term infection, may last a lifetime.

Q5: Can Hepatitis B cause cancer?
Yes, chronic Hepatitis B increases the risk of liver cancer (hepatocellular carcinoma).

Q6: Should pregnant women be screened for Hepatitis B?
Yes. Early screening ensures proper measures to prevent transmission to the baby.

Q7: What should I do if I have been exposed to Hepatitis B?
Post-exposure prophylaxis with HBV vaccine and Hepatitis B immunoglobulin (HBIG) within 24 hours can prevent infection.

Q8: Can I donate blood if I have Hepatitis B?
No. People infected with HBV should not donate blood or organs.

Hepatitis B is a serious viral infection that can silently damage the liver if left untreated. However, with early diagnosis, proper treatment, and preventive measures, its impact can be significantly reduced. The Hepatitis B vaccine remains the most effective way to protect yourself and future generations from this infection.

Regular screening, adopting safe practices, and spreading awareness are key to reducing the global burden of Hepatitis B.

To consult a Gastroenterologist or to get yourself tested at Sparsh Diagnostic Centre, call our helpline number 9830117733.

#BhaloTheko

Disclaimer:

No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.