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Hepatitis B and C together: what coinfection means for your liver | CION Cancer Clinics
Having hepatitis B and C at the same time usually scars the liver faster and raises the risk of liver cancer more than either virus alone. Both can be managed: hepatitis C is cleared with tablets and hepatitis B is controlled. The catch is that clearing C can wake up B, so one doctor needs to plan for both. This page explains how, and why surveillance scans continue. At CION Cancer Clinics, our specialists help you understand your own risk and plan regular liver checks that fit it.
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Medically reviewed by Dr. Naresh GunduConsultant Medical Oncologist · MBBS, DNB (Internal Medicine), DM (Medical Oncology, AIIMS) · last reviewed October 2026, next review due October 2027
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On this page
- What does it mean to have hepatitis B and C at the same time?
- Why is having both viruses riskier than having one?
- How is coinfection usually tested and treated?
- How do hepatitis B and hepatitis C differ?
- What do families believe about having both viruses?
- What can this page not tell you?
- Common questions about hepatitis B and C together
The short answer
What does it mean to have hepatitis B and C at the same time?
It means two different viruses are living in the same liver. Together they tend to scar the liver faster and raise the risk of liver cancer more than either one alone, so the plan needs a doctor who looks at both.
Two viruses, two different stories
Hepatitis C can now be cleared with a short course of tablets. Hepatitis B is controlled, not cleared, usually with long-term medicine when it is active. When both are present, treating one changes the behaviour of the other. That is why the order of tests and treatment matters.
Why doctors call it coinfection
Coinfection simply means two infections at once. It is more common in people exposed to blood more than once, such as through unsafe injections, older blood transfusions or shared needles. It is also seen in people who had hepatitis B from birth and later picked up hepatitis C. None of these is a matter of fault.
Who this page is for
This page is for adults told they are positive for both viruses, and for the family member helping them. It is about primary liver cancer, the kind that starts in the liver. If a scan has found cancer that spread to the liver from another organ, this page does not apply.
Coinfection is manageable. It needs one plan that covers both viruses, not two separate ones.What changes
Why is having both viruses riskier than having one?
The two viruses do not simply add up. They interact, and that changes how the liver is watched and treated.
One virus often hides the other
In many people, hepatitis C is the more active virus and keeps hepatitis B quiet. Blood tests may then show very little hepatitis B activity, which can look reassuring when it is not.
Clearing C can wake up B
When hepatitis C tablets remove that virus, hepatitis B can flare up. This is called reactivation. It can cause a sudden liver injury, so doctors test for hepatitis B before starting hepatitis C treatment and watch closely during it.
Scarring tends to be faster
Two viruses attacking the same liver usually cause more inflammation. Over time that can lead to fibrosis, which is scarring, and then to cirrhosis, where the scarring is widespread.
Cancer risk is higher
Hepatocellular carcinoma, or HCC, is the commonest primary liver cancer. The risk is higher with coinfection, and hepatitis B can cause it even without cirrhosis.
That is why regular surveillance scans matter more, not less, for people with both viruses.Not sure whether this applies to you?
Ask an oncologistThe usual order
How is coinfection usually tested and treated?
Both viruses are measured
Your doctor checks hepatitis B markers such as HBsAg and the hepatitis B viral load, and the hepatitis C RNA test. Many also test for hepatitis D, which only infects people who already have hepatitis B. Our page on hepatitis D coinfection explains why.
The liver is assessed
An ultrasound and often elastography, a scan that measures stiffness, show how much scarring there is. CION arranges these through diagnostic partners when they are needed for a cancer question.
Hepatitis C is treated with a plan for B
Hepatitis C tablets are usually given, with hepatitis B either treated at the same time or watched closely. That choice belongs to a hepatologist or physician. Our page on direct-acting antivirals in India covers the medicines.
Surveillance continues afterwards
Even after hepatitis C clears, hepatitis B and any scarring remain. Regular ultrasound, often with an AFP blood test, continues as your doctor advises.
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When to go to hospital today
During or after hepatitis C treatment, a hepatitis B flare can damage the liver quickly. If you develop yellow eyes or skin with fever, new confusion or drowsiness, vomiting blood or black stools, go to hospital today and say you have both hepatitis B and C. Do not wait for your next clinic visit. New tiredness, dark urine or pain under the right ribs needs a call to your doctor this week.
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Side by side
How do hepatitis B and hepatitis C differ?
Hepatitis B
Hepatitis C
Controlled with medicine, rarely cleared completely
Cleared with a short course of tablets in most people
A vaccine prevents it
No vaccine exists
Often passed from mother to baby or within families
Mostly passed through blood, such as unsafe injections
Can cause liver cancer even without cirrhosis
Cancer risk is mainly in a scarred liver
Commonly believed
What do families believe about having both viruses?
"My hepatitis B report is low, so I only need to worry about C."
Hepatitis C often keeps hepatitis B quiet. A low hepatitis B reading can rise once hepatitis C is treated, which is why both are watched together.
"Once hepatitis C is cleared, the liver is safe."
Hepatitis B and any scarring are still there. The cancer risk falls but does not go away, so surveillance scans continue after treatment.
"Having two viruses means someone in the family did something wrong."
Most coinfection comes from old injections, blood transfusions before screening, or hepatitis B from birth. It says nothing about character. Family testing and vaccination protect everyone without blame.
"Herbal liver tonics can treat both."
No herbal product clears hepatitis C or controls hepatitis B, and some can injure an already scarred liver. Tell your doctor about anything you take, without fear of being judged.
Being straight with you
What can this page not tell you?
It cannot tell you which virus to treat first or which medicines you need. That depends on your viral loads, your liver scarring and your other health problems, and it is decided by a hepatologist or physician. It cannot tell you your personal cancer risk either.
If you also need cancer treatment
Chemotherapy, immunotherapy and some targeted medicines can reactivate hepatitis B, so your oncologist needs to know about both viruses before anything starts. Our page on hepatitis B reactivation during cancer treatment explains what is checked. For immunotherapy, see hepatitis B and C with immunotherapy.
Who this does not apply to
If you have only one of the two viruses, the sister pages on hepatitis B or hepatitis C alone fit you better. If your antibody test for hepatitis C is positive but the RNA test is negative, you may not have active hepatitis C at all.
CION coordinates hepatology and antiviral care through partner hospitals, and plans cancer care at its own centres.Questions we are asked
Common questions about hepatitis B and C together
Can hepatitis B and C both be treated?
Yes. Hepatitis C is treated with antiviral tablets and is usually cleared. Hepatitis B is controlled with long-term medicine when it is active or when there is a risk of a flare. A hepatologist or physician plans both together so that treating one does not harm the liver through the other.
Why did my doctor test for hepatitis B before treating C?
Because clearing hepatitis C can make a hidden hepatitis B infection flare up. Knowing in advance lets your doctor give hepatitis B medicine or watch blood tests closely during treatment. This check is standard for everyone starting hepatitis C tablets.
Does coinfection always lead to liver cancer?
No. Many people with both viruses never develop liver cancer. The risk is higher than with one virus, which is why regular scans are advised. When surveillance finds a small tumour early, it is often curable, so keeping up with scans is the most useful thing you can do.
How often should I have a liver scan?
Your hepatologist or oncologist sets the interval based on your liver scarring and hepatitis B activity. Most people at raised risk have an ultrasound regularly, often with an AFP blood test. Do not stop scans because you feel well, since early liver cancer usually causes no symptoms.
Should my family be tested?
Yes. Close family members should be offered tests for both viruses. Anyone not protected against hepatitis B can be vaccinated. Our page on vaccinating the household explains who to start with. Offering tests is protection, not accusation.
Can I get the hepatitis B vaccine if I have hepatitis C?
If you do not already have hepatitis B and are not immune, yes, and it is usually recommended. A blood test shows whether you need it. The vaccine does nothing for someone who already carries hepatitis B, and there is no vaccine for hepatitis C.
What is hepatitis D and should I worry about it?
Hepatitis D is a third virus that can only infect people who already have hepatitis B. It makes liver damage worse. Many doctors check for it once hepatitis B is found. Ask whether you have been tested if your report does not mention it.
Who should I see first?
A hepatologist or physician who treats viral hepatitis is the right first doctor. If a scan has already shown a spot on the liver, or you are about to start cancer treatment, call the CION helpline and the team will review your reports with you.
Your Specialists
Meet CION's liver cancer specialists. Bring your scan reports and liver blood tests.
Our medical and surgical oncologists plan liver cancer care together, weighing the tumour and how well your liver works before choosing surgery, a liver-directed procedure or medicines.
Medical Oncologist
Dr. C. Raghavendra Reddy
MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
Medical Oncologist
Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
Medical Oncologist
Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
Medical Oncologist
Medical Oncologist
Surgical Oncologist
Dr. Muralidhar Muddusetty
MBBS (AIIMS), MS (Surgery) (AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh)
Surgical Oncologist
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Sources
- NHS — Hepatitis B
- NHS — Hepatitis C
- NIDDK — Hepatitis B - NIDDK
- AASLD — Practice Guidelines
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
Related pages
Hepatitis D: the infection that makes hepatitis B worseThe third virus worth testing forWhy surveillance continues after hepatitis C treatmentWhich scans continue after the virus clearsHepatitis B reactivation during cancer treatmentWhat is checked before chemotherapy or immunotherapyDirect-acting antivirals in IndiaThe tablets that clear hepatitis C
Talk to us
Have both viruses and a scan report you are unsure about?
Send us your reports and our tumour board will review any liver finding with you and help plan surveillance or next steps. One helpline serves every CION centre.