Medical Oncologist
CION Cancer Clinics
What family members of a liver cancer patient should actually be tested for | CION Cancer Clinics
Most relatives need a blood test for hepatitis B, and usually hepatitis C. They do not need a cancer gene test. Liver cancer runs in families mainly because hepatitis B passes between family members. This page explains which relatives need which test, what the results mean, and how a positive result turns into protection rather than worry. At CION Cancer Clinics, our specialists help you understand your own risk and plan regular liver checks that fit it.
NG
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
17+specialists on panel
15,000+patients treated
35+centres across Telangana & AP
4.8★ / 800+Google rating
On this page
- What should the family of a liver cancer patient be tested for?
- Which tests actually help, and who needs each one?
- How do we arrange testing for the whole family?
- What do the hepatitis B results mean in plain words?
- What do families often get wrong about testing?
- What this page cannot tell you
- Common questions about testing relatives
The short answer
What should the family of a liver cancer patient be tested for?
Most relatives need a simple blood test for hepatitis B, and usually one for hepatitis C. They do not need a cancer gene test. Liver cancer gathers in families mainly because hepatitis B passes between family members, not because the cancer itself is inherited.
Why the virus test matters more than anything else
Hepatitis B can sit quietly in the liver for decades without a single symptom. A brother, a sister or a grown-up child can carry it and feel perfectly well. Finding it early means that person can be watched, treated if needed, and offered regular liver scans that find any tumour while it is still small. Relatives who test negative can be vaccinated.
Which patient this page is about
This page is for families of someone with primary liver cancer, the kind that starts in the liver itself, often called HCC (hepatocellular carcinoma). If the cancer spread to the liver from the bowel, breast or elsewhere, the family question belongs to that original cancer. The page on whether liver cancer is inherited explains the difference.
A virus test answers a far more useful question than a gene test for most of these families.The short list
Which tests actually help, and who needs each one?
Your doctor will choose from this list based on what caused the patient's liver disease. Not every relative needs every test.
Hepatitis B blood tests
The main one is HBsAg, which shows whether the virus is present now. Anti-HBs shows protection, and anti-HBc shows a past infection.
Most useful for
- Parents, brothers, sisters and children
- The husband or wife
- Anyone living in the same home
Hepatitis C antibody
A single blood test that shows whether someone has ever met the virus. If it is positive, a second test checks whether the virus is still active. Hepatitis C is curable with modern tablets.
Liver health checks
Liver blood tests and an ultrasound are useful for a relative who turns out to carry a virus, drinks heavily, or has diabetes and fatty liver. They are not needed for everyone.
Iron studies, in a few families
If the patient's liver disease came from haemochromatosis, an inherited iron overload, blood relatives are offered iron tests and a gene test for that condition. This is the main exception to the no-gene-test rule.
Your doctor will tell you if this applies.Not sure whether this applies to you?
Ask an oncologistGetting it done
How do we arrange testing for the whole family?
Find out what caused the patient's liver disease
Ask the treating team whether it was hepatitis B, hepatitis C, alcohol, fatty liver or something rarer. The answer decides which relatives need which test.
Make a list of close relatives
Write down parents, brothers, sisters, children and the spouse, including those living in another district or abroad. Note anyone already known to carry hepatitis B.
Book the blood tests together
One family visit with one request form is easier than many separate trips. CION can help arrange the tests through its diagnostic partners and explain the results to everyone at once.
Act on each result
A relative who carries hepatitis B is referred to a hepatologist and given a surveillance plan. A relative with no virus and no protection is offered the vaccine. Read more on getting the whole family vaccinated.
On the report
What do the hepatitis B results mean in plain words?
- HBsAg positive
- The virus is in the body now. This person needs a hepatologist or physician to check how active it is and whether scans are needed.
- Anti-HBs positive
- The person is protected, either from the vaccine or from fighting off an old infection. No vaccine is needed.
- Anti-HBc positive, HBsAg negative
- A past infection that the body has controlled. It matters mainly if the person ever needs chemotherapy or strong immune-lowering medicines.
- All negative
- No infection and no protection. This relative should be vaccinated, especially if they live with a carrier.
- Hepatitis C antibody positive
- The person has met the virus. A second test checks whether it is still active and needs treatment. See reading a hepatitis B report for the B lines in more detail.
Leave a number, we will call you
One field. No form to fill in, and no charge for the call.
Commonly believed
What do families often get wrong about testing?
"We should all get a cancer gene test."
For almost all liver cancer, a gene test finds nothing useful. The family link usually runs through a shared virus, and the right test for that is a simple blood test for hepatitis B and C.
"An AFP blood test will show if we have cancer too."
AFP (alpha-fetoprotein) is a marker used alongside scans in people already under surveillance. In a healthy relative with no virus and no liver disease, it is not a screening test and can cause needless worry.
"I feel fine, so I cannot have hepatitis B."
Most carriers feel completely well for years. Feeling fine tells you nothing about the virus. Only the blood test does.
"If the test is positive, it means someone did something wrong."
In Indian families, hepatitis B most often passed from mother to baby at birth, long before vaccines were routine. Nobody chose it and nobody is to blame. A positive result is a reason to be watched, not a judgement.
Being straight with you
What this page cannot tell you
It cannot tell you which tests your own family needs. That depends on what caused the patient's liver disease, who lives together, and who has already been tested or vaccinated. The treating doctor or a hepatologist can work that out with you in one conversation.
It cannot read a result for you
Hepatitis B reports have several lines, and they only make sense together. If a relative's report shows anything positive, take it to a doctor rather than searching each word online. The page on surveillance for hepatitis B carriers explains what usually follows.
Who this does not apply to
If the patient's cancer spread to the liver from another organ, this testing plan does not apply. If the liver disease came from alcohol alone, relatives may still be offered virus tests, but the family risk is lower. Relatives who already know they are vaccinated and protected need nothing further from this list.
If you are unsure where your family fits, call the helpline and describe the patient's diagnosis.Questions we are asked
Common questions about testing relatives
Is liver cancer passed down in families?
Rarely in the genetic sense. It clusters in families mainly because hepatitis B passes between family members, especially from mother to baby. A few inherited conditions, such as haemochromatosis, do raise risk, and your doctor will tell you if one applies to your family.
Which relatives should be tested first?
Start with the people closest to the patient: the mother, brothers and sisters, children and the spouse. Anyone sharing a home comes next. If the patient carried hepatitis B from birth, their mother and siblings are the most likely to carry it too.
Do children need to be tested?
Yes. If a parent carries hepatitis B, the children should be checked even if they were vaccinated, because the vaccine may have come too late to block infection at birth. The page on testing children of a carrier explains how.
Should relatives have a liver ultrasound too?
Not routinely. An ultrasound is useful for a relative who turns out to carry hepatitis B or C, has cirrhosis, or has fatty liver with diabetes. For a relative with negative blood tests and a healthy liver, a scan adds little. Your doctor will decide who needs one.
What happens if a relative tests positive for hepatitis B?
They see a hepatologist or physician, who checks how active the virus is and how healthy the liver is. Some need antiviral tablets and some only need monitoring. Many are offered regular liver scans, which find a tumour while it is small. Hepatitis B is controlled, not removed.
Can hepatitis C in the family be treated?
Yes. Hepatitis C is curable with modern tablets in most people, which is one more reason to test. Someone who already had cirrhosis before treatment still needs regular liver scans afterwards, because the scarred liver keeps some risk.
Is there a national programme for hepatitis testing?
India runs the National Viral Hepatitis Control Programme, which supports testing and treatment through government facilities. What is offered and where can change, so check with your nearest government hospital or district health office at the time you need it.
How can CION help our family?
The team can explain which relatives need which tests, arrange the blood tests through diagnostic partners, and go through the results with the whole family together. Relatives who need hepatitis care are referred to a hepatologist, and surveillance planning can be set up at a CION centre.
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
Want a specific doctor for your case? Mention them when booking.
Book Free ConsultationBook an appointment with our specialist
Share your name and number — we'll call you back within 30 minutes to schedule your consultation.
Sources
- World Health Organization — Hepatitis B
- NHS — Hepatitis B
- NHS — Haemochromatosis
- National Viral Hepatitis Control Program (MoHFW) — National Viral Hepatitis Control Program
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
Why liver cancer runs in families without being geneticThe reason the virus test matters more than a gene testTesting children of a hepatitis B carrierWhat to do for sons and daughters, even if vaccinatedA family screening checklistOne list to work through, relative by relativeGetting the whole family vaccinated against hepatitis BThe next step for relatives who test negative
Talk to us
Not sure which relatives need testing?
Tell us what caused the patient's liver disease and who is in the family. We will explain which tests make sense and help arrange them. One helpline serves every CION centre.