Hepatitis B and C Screening: Who Should Get Tested and Why

TL;DR: Hepatitis B and hepatitis C often cause no symptoms for years, so many people do not know they carry the virus. A simple blood test checks for both. If you are positive, a gastroenterologist can assess your liver and plan follow-up. Hepatitis B can be prevented by vaccination, and hepatitis C is treated with tablets that work very well for most people.

The Short Answer

Hepatitis B and hepatitis C are viral infections of the liver. Both can slowly cause scarring (fibrosis), cirrhosis and liver cancer if they are not found and managed. The main reason to get tested is that the infection is usually silent. A blood test is the only way to know your status. Screening finds people early, when monitoring and treatment are most useful.

This article is general education. It is not medical advice. Your doctor decides which tests you need.

Who Should Consider Testing

Public health guidance, including the WHO and NHS, recommends testing for people who may be at higher risk. Ask your doctor about a test if any of these apply to you:

Some national programmes test all adults once, even without risk factors. Your doctor can tell you what is available locally.

Symptoms

In the early stages, hepatitis B and C frequently cause no symptoms at all. When symptoms do appear, they can include:

These signs are not specific to hepatitis. Any of them should prompt a medical review.

Causes and How They Spread

Hepatitis B spreads through blood and other body fluids. It can pass from mother to baby at birth, through sexual contact, and through shared needles or unsafe medical practice. Hepatitis C spreads mainly through blood-to-blood contact, such as shared injecting equipment, unscreened blood products and, less often, unsterile tattooing or sharing personal items. Sexual spread of hepatitis C is uncommon but possible.

Neither virus spreads through casual contact such as hugging, sharing meals or coughing.

Tests and Diagnosis

Screening usually starts with a blood test. The results are read in steps:

1. Hepatitis B. A test for the surface antigen (HBsAg) shows current infection. A test for antibodies against the surface antigen (anti-HBs) shows immunity, usually from vaccination or past infection.

2. Hepatitis C. An antibody test shows past or present exposure. If it is positive, a viral load test (HCV RNA) shows whether the virus is active.

3. Liver assessment. Liver function tests, a blood count and, where needed, a non-invasive scan such as FibroScan help estimate how much the liver is affected.

A gastroenterologist interprets these results together. Do not start or stop any medicine on the basis of a test result alone.

Treatment Options in General

Hepatitis B. Vaccination is the most effective prevention and is recommended for people who are not immune. For people with chronic hepatitis B, treatment depends on the viral load, liver tests and the degree of liver damage. Antiviral tablets may be recommended. Regular monitoring is important even when treatment is not started straight away.

Hepatitis C. Modern antiviral tablets, called direct-acting antivirals, treat hepatitis C very effectively for most people. The course is usually a few weeks to a few months. After treatment, a blood test checks that the virus is no longer detected. Alcohol intake, other liver conditions and the stage of liver damage all affect the plan.

Both infections need regular follow-up when the liver is already scarred. The aim is to protect the liver and reduce the risk of complications.

When to Seek Emergency Care

Get urgent medical help if you have any of the following:

These can be signs of serious liver disease or bleeding and need prompt assessment.

Common Questions

If I have had hepatitis B vaccination as a child, do I still need a test? Possibly not. Your doctor may check an antibody level if you are at risk or are unsure of your vaccine history.

Can I pass hepatitis C to my partner? Sexual spread is uncommon, but it is possible. Ask your doctor for advice on precautions and whether your partner should be tested.

Does a positive result mean I will have liver failure? No. Many people with chronic infection have long periods with little or no liver damage. Early assessment is the way to find out where you stand.

Is screening free? This depends on where you live and on any programme in place. Check with your clinic before the appointment.

Consultations

Consultations for liver health, including hepatitis assessment, are available at Krisara Gastro & Liver Clinic, Kompally, and at Yashoda Hospitals, Secunderabad. To book or ask a question, visit the [contact page](/contact).

Sources

This article is general education and not medical advice. Speak to a qualified doctor about your own symptoms, tests and treatment.