Hepatitis: Let's Break It Down

📖6 min read

🕐 Last updated: July 30, 2026

Every year on July 28, World Hepatitis Day brings a simple message back into focus: the liver is one of the hardest-working organs in the body, and viral hepatitis is one of the few major preventable infectious diseases. The 2026 theme, “Hepatitis: Let’s Break It Down,” is a call to strip away the confusion, stigma, and gaps in access that keep millions of people from getting diagnosed and treated in time.

The Liver: One of the Body's Most Important Organs

The liver is the largest internal organ in the human body, and it is involved in nearly every metabolic process that keeps a person alive. It filters toxins out of the blood, produces bile to help digest fats, stores energy in the form of glycogen, manufactures proteins needed for blood clotting, and breaks down medications and alcohol. Because so many systems depend on it, damage to the liver rarely stays contained. When the liver is inflamed or scarred, the effects can ripple out to digestion, immunity, and blood clotting.

The liver is also remarkably resilient and can often regenerate and compensate for early damage. This is exactly why viral hepatitis is so dangerous: it can quietly inflame and scar the liver for years, sometimes decades, before a person notices any symptoms at all.

What Is Hepatitis?

Hepatitis means inflammation of the liver. It can be caused by viruses, excessive alcohol use, certain medications, toxins, or autoimmune disease, but viral hepatitis, caused by the hepatitis A, B, C, D, and E viruses, is the most common cause worldwide. Hepatitis can be acute, meaning it develops suddenly and often resolves on its own, or chronic, meaning the infection persists for more than six months and can slowly progress toward cirrhosis (permanent scarring) and liver cancer.

Types of Viral Hepatitis

Hepatitis A

Hepatitis A spreads through the faecal-oral route, typically from contaminated food or water or close contact with an infected person. It causes only acute infection and does not become chronic. Most people recover fully with rest, hydration, and supportive care, and a safe, effective vaccine is available.

Hepatitis B

Hepatitis B spreads through contact with infected blood or body fluids, including during birth, sexual contact, or through shared needles. It can be acute or chronic. According to the CDC, chronic hepatitis B affects hundreds of thousands of people in the United States alone, and about two-thirds of them do not know they are infected. A vaccine exists and is highly effective at preventing infection.

Hepatitis C

Hepatitis C is bloodborne, most often transmitted today through shared needles or injecting equipment. It frequently becomes chronic and, left untreated, can lead to serious liver damage. There is no vaccine yet, but modern antiviral medication cures more than 95 percent of diagnosed cases, according to the CDC, which is why testing matters so much.

Hepatitis D

Hepatitis D only occurs in people who are already infected with hepatitis B, since it depends on the hepatitis B virus to replicate. Co-infection tends to accelerate liver damage, making hepatitis B prevention, through vaccination, doubly important.

Hepatitis E

Hepatitis E, like hepatitis A, spreads mainly through contaminated water. The World Health Organization estimates it causes millions of acute infections globally each year. This is because early hepatitis is usually self-limiting, though it can be serious in pregnant women.

Investigations: How Hepatitis Is Diagnosed

Often causes no symptoms, or only vague fatigue and nausea; diagnosis depends on the right laboratory tests rather than symptoms alone. Common investigations include:

Liver function tests (LFTs) to check liver enzymes such as ALT and AST, which rise when the liver is inflamed.

Viral serology and antigen/antibody tests, such as HBsAg and anti-HBs for hepatitis B, or anti-HCV antibody and HCV RNA for hepatitis C, to confirm active infection, past exposure, or immunity.

Viral load testing to measure how much virus is circulating and to guide treatment decisions.

Imaging, such as ultrasound or transient elastography (FibroScan), to assess liver stiffness and scarring.

Liver biopsy in select cases, when the stage of liver damage is unclear from blood tests and imaging alone.

Management: How Hepatitis Is Treated

Treatment depends heavily on which type of hepatitis is involved and whether the infection is acute or chronic.

Hepatitis A and E are usually managed with supportive care alone, rest, fluids, and monitoring, since the body typically clears the infection on its own.

Chronic hepatitis B is managed with long-term antiviral medication, such as tenofovir or entecavir, which suppress the virus and reduce the risk of cirrhosis and liver cancer. There is currently no cure, so treatment is often lifelong.

Hepatitis C is treated with direct-acting antiviral (DAA) medications taken for a course of 8 to 12 weeks. These medications cure more than 95 percent of people who complete treatment.

Advanced liver disease, cirrhosis, or liver cancer may require specialist management, and in severe cases, liver transplantation.

Regular monitoring is a key part of management for anyone with chronic hepatitis B or C, since ongoing surveillance can catch complications, including liver cancer, at an earlier and more treatable stage.

Prevention: Reducing the Risk of Hepatitis

Get vaccinated against hepatitis A and B; a combined vaccine is available for both.

Ask for a one-time hepatitis B and C screening as an adult, even without symptoms or known risk factors.

Avoid sharing needles, razors, or other items that may carry blood.

Practice safe injection, tattoo, and piercing hygiene, and confirm sterile equipment is used.

Practice safer sex, since hepatitis B can be sexually transmitted.

Drink clean, safely treated water and practice good food hygiene, particularly when traveling, to reduce the risk of hepatitis A and E.

When to Seek a Second Medical Opinion

Hepatitis is a condition where the right decision at the right time can prevent decades of liver damage, which is exactly why a second opinion is worth considering in certain situations:
- Test results are borderline or conflicting, such as an unclear fibrosis stage or fluctuating viral load.
- A treatment plan is being started, changed, or stopped, and the reasoning behind it is not fully clear.
- There are signs of advanced liver disease, cirrhosis, or possible liver cancer.
- Another condition, such as pregnancy, HIV, or kidney disease, complicates hepatitis.
- A liver transplant is being discussed as an option.
- A patient was diagnosed abroad or received different advice from different providers and wants clarity before committing to a long-term treatment course.