Hepatitis B chronic living in children

Overview

Chronic hepatitis B is a long-term infection of the liver caused by the hepatitis B virus. When a child has chronic hepatitis B, the virus stays in their body for many years and can cause inflammation (swelling) of the liver. It is different from acute hepatitis B, which usually goes away on its own. Chronic means it lasts for a long time.

Chronic hepatitis B is most common in parts of the world where the infection spreads easily, such as in Asia, Africa, and parts of Eastern Europe. In the UK, it is less common but still affects some children, especially those born in or adopted from high-risk areas. The overall number of children with chronic hepatitis B has decreased thanks to vaccination programs.

Chronic hepatitis B can affect anyone, but it is especially common in children who are infected at birth or in early childhood. The immune system of younger children is less able to clear the virus, so they are more likely to develop a chronic infection. Children born to mothers with hepatitis B are at highest risk.

Symptoms

Common symptoms

• Many children with chronic hepatitis B have no symptoms at all.
• Some may feel tired, have mild belly pain, or lose their appetite.
• Jaundice (yellowing of the skin or eyes) is less common but can occur.

Symptoms in children

• Most children with chronic hepatitis B do not have any symptoms for many years.
• If symptoms occur, they may include fatigue, poor appetite, nausea, or a feeling of fullness in the belly.
• Some children may have mild jaundice or dark urine.

Symptoms in older adults

• Chronic hepatitis B in older adults may cause more noticeable symptoms like jaundice, joint pain, or swelling in the legs.
• Adults are at higher risk of liver damage over time, including cirrhosis (scarring of the liver) and liver cancer.

Causes

Main causes

• Chronic hepatitis B is caused by the hepatitis B virus. It is usually passed from an infected mother to her baby during birth.
• The virus can also spread through contact with infected blood or body fluids, such as sharing needles or toothbrushes.
• In children, the most common way is from mother to baby. If the mother is infected during pregnancy or birth, the baby may catch the virus.

Risk factors

• Born to a mother with hepatitis B
• Living in a household with someone who has chronic hepatitis B
• Living in or traveling to regions where hepatitis B is common, such as parts of Asia, Africa, and the Pacific Islands
• Receiving blood products or organ transplants in areas with poor screening
• Using unsterilized needles or medical equipment

When to see a doctor

See a doctor urgently if:

• If your child shows signs of jaundice (yellow eyes or skin) especially if it appears suddenly
• If your child has severe belly pain or vomiting
• If your child seems confused, very sleepy, or is not acting normally

Book a routine appointment if:

• If your child has been diagnosed with hepatitis B and you need a follow-up appointment
• If your child has risk factors and has never been tested for hepatitis B
• For routine monitoring such as blood tests to check liver function and virus levels

Diagnosis

Chronic hepatitis B is diagnosed with a blood test that looks for parts of the virus or antibodies your body makes against it. If the virus is found in the blood for more than six months, it is called chronic hepatitis B.

Tests that may be done

• Blood tests for hepatitis B surface antigen (HBsAg) and other markers
• Liver function tests to see how well the liver is working
• Viral load test to measure the amount of virus in the blood
• Ultrasound of the liver to check for damage or scarring

What to expect at your appointment

Your child will see a specialist doctor (often a paediatric hepatologist or gastroenterologist). They will have regular blood tests and sometimes scans to monitor the liver. The doctor will explain the results and what they mean. You will be supported with information on how to keep your child healthy and prevent spreading the virus to others.

Treatment

Treatment for chronic hepatitis B in children depends on how active the virus is and how much liver damage there is. Not all children need antiviral medication. The goal is to control the virus, protect the liver, and reduce the risk of long-term complications.

Self-care at home

• Make sure your child gets the hepatitis A vaccine and any other recommended vaccines to protect the liver.
• Keep your child's weight in a healthy range to reduce strain on the liver.
• Avoid giving your child any medicines that can harm the liver, such as paracetamol in high doses (always follow dose instructions).
• Teach your child good hygiene, like not sharing toothbrushes or nail clippers, to prevent spreading the virus.

Medical treatments

If the virus is active and causing liver inflammation, doctors may prescribe antiviral medicines. These are given as pills or liquids and help lower the amount of virus in the blood. Treatment is usually long-term but may be stopped if the virus becomes inactive. Regular monitoring is needed to decide when to start or stop treatment. Do not give any medication without your doctor's advice.

When is surgery considered?

Surgery is very rarely needed for chronic hepatitis B in children. It may be considered only if the liver becomes severely damaged (cirrhosis) or if liver cancer develops. In such cases, a liver transplant may be an option, but this is uncommon in children.

Living with this condition

Most children with chronic hepatitis B can go to school, play sports, and enjoy a normal childhood. They do not need to be isolated. It is important to teach them and others about the virus in a calm way to avoid stigma. Regular medical check-ups will help keep track of their liver health.

Lifestyle tips

• Encourage a healthy diet with plenty of fruits, vegetables, and whole grains.
• Make sure your child gets enough sleep and stays physically active.
• Avoid any alcohol or recreational drugs, especially as your child gets older.
• Keep up with all medical appointments and blood tests as scheduled.

Diet and exercise

A balanced diet helps support liver health. Avoid fatty or sugary foods in excess. Regular exercise is safe and recommended. Your child can participate in physical activities like running, swimming, or team sports. There are no special restrictions unless the liver is very damaged, which is rare in children.

Mental health and emotional wellbeing

A chronic condition can cause worry for both the child and the family. Some children may feel different or anxious about having hepatitis B. It is important to talk openly and provide reassurance. If your child shows signs of anxiety, sadness, or withdrawal, speak to a healthcare professional who can offer support.

Prevention

Yes, hepatitis B can be prevented with a safe and effective vaccine. All babies in the UK are offered the hepatitis B vaccine as part of the routine childhood immunization schedule. If you are pregnant, you can be tested for hepatitis B so your baby can receive the vaccine and a special injection (immunoglobulin) right after birth to prevent infection.

Vaccines

The hepatitis B vaccine is given to all babies as a series of injections. It is also recommended for children who are at higher risk, such as those living in households with someone who has hepatitis B. The vaccine is very effective at preventing infection.

Screening programmes

Pregnant women are routinely screened for hepatitis B in the UK. For children who have risk factors, such as being born in high-risk countries, a blood test for hepatitis B can be done. Early detection helps prevent transmission to others and allows for early monitoring.

Complications

If left untreated

• Liver damage that gets worse over time, including cirrhosis (scarring of the liver)
• Higher risk of liver cancer later in life
• Liver failure in severe cases
• Spreading the virus to other people

Long-term outlook

The outlook for children with chronic hepatitis B is generally good. Most children do not develop serious liver problems during childhood. With regular medical care and monitoring, many can live a full lifespan. New treatments are improving outcomes further. It is important to stay in touch with your healthcare team and follow their advice.

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