Medical Oncologist
CION Cancer Clinics
A positive telomere gene result: what happens next | CION Cancer Clinics
After a positive telomere gene result, you are referred to a haematologist and your blood, lungs, liver and mouth are checked regularly. If you are already unwell, the result changes how treatment is planned, because short telomeres make the body more sensitive to chemotherapy and radiation. This page walks through the first months, the checks that follow and what carriers should avoid. At CION Cancer Clinics, our oncologists explain what a gene result means for you and your family, and plan the checks that follow.
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Medically reviewed by Dr. Basudev PokhrelConsultant Haematologist · last reviewed September 2026, next review due September 2027
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On this page
- What happens after a positive telomere gene result?
- Which parts of the body are watched, and why?
- What usually happens in the first months, and after?
- The words you will meet, in plain language
- What helps, and what to avoid, with a telomere gene fault
- What this page cannot tell you
- Four things families tell us, and what is actually true
- Common questions after a positive result
The short answer
What happens after a positive telomere gene result?
You are referred to a haematologist who sees telomere biology disorders, and a plan is built around your blood, lungs, liver and mouth. What that plan looks like depends on whether you are already unwell or a relative who feels fine. In both cases the family is offered testing.
If you are already unwell
Most people reach this result because their blood counts are falling, their lungs are scarring, or they have the classic changes in nails, skin and mouth. The result explains why. It also changes how treatment is planned, because people with short telomeres react more strongly to chemotherapy and radiation, and doses are chosen with that in mind.
If you are a well relative
A well carrier usually starts with a baseline set of tests, then regular checks. Nothing may need treating for years. The aim is to spot a falling blood count, early lung change or a mouth lesion while it is still small and easier to manage.
A positive result explains risk. It does not tell you which problem, if any, you will develop.Four areas of care
Which parts of the body are watched, and why?
Telomeres matter most in tissues that renew themselves often. That is why care focuses on these four areas.
Blood and bone marrow
Regular blood counts show whether the marrow is keeping up. A marrow test may be done at the start and repeated if counts change, to look for early signs of a blood cancer. Tiredness, frequent infections or bruising between checks should be reported straight away.
Lungs
Breathing tests and, when needed, a scan check for scarring. Early breathlessness or a dry cough that does not settle should be reported, not put down to age or pollution. Avoiding smoke and dust at home and at work also protects the lungs.
Liver
Blood tests and sometimes an ultrasound look for liver scarring. Some medicines and alcohol can harm the liver more in people with short telomeres. Tell every doctor who prescribes for you about your result.
Mouth, throat and skin
Carriers have a raised risk of mouth and throat cancers. Regular checks by a dentist and an ear, nose and throat doctor look for white patches or sores that do not heal.
Tell your doctor about
- A mouth ulcer that lasts
- A new white or red patch
- Trouble swallowing
Not sure whether this applies to you?
Ask an oncologistStep by step
What usually happens in the first months, and after?
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The results appointment
The counsellor explains the gene, how it is inherited in your family, and what it means for you. Bring a relative and write your questions down beforehand.
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A haematology referral
A haematologist reviews your blood counts and decides whether a bone marrow test is needed now. If counts are low, treatment options are discussed.
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Baseline checks of lungs and liver
Breathing tests and liver tests give a starting point, so any later change can be spotted early rather than guessed at.
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A dental and throat check
The mouth and throat are examined, and a routine for regular checks is agreed. This is especially important for anyone who has used tobacco.
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Relatives are offered testing
Brothers, sisters, parents and children are offered the targeted test, and any possible marrow donor is tested first.
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Regular review, for life
Checks continue at a pace the team sets for you. The plan changes if your blood counts, lungs or liver change.
On your report and in clinic
The words you will meet, in plain language
- Bone marrow failure
- The marrow stops making enough red cells, white cells or platelets. Tiredness, infections and easy bruising are common signs.
- Pulmonary fibrosis
- Scarring of the lungs that makes them stiff. It causes breathlessness that slowly gets worse.
- Stem cell transplant
- Replacing failing marrow with healthy marrow from a donor. It treats the marrow, not the lungs or liver.
- Leukoplakia
- A white patch inside the mouth that cannot be wiped away. It is checked because it can sometimes turn into cancer.
- Reduced-intensity treatment
- Gentler doses of chemotherapy or radiation, chosen because people with short telomeres are more easily harmed by standard doses.
- Carrier
- Someone with the gene fault who may have no symptoms yet. A carrier is watched, not treated.
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Side by side
What helps, and what to avoid, with a telomere gene fault
Worth doing
Worth avoiding
Keeping every scheduled blood count
Smoking, gutka, khaini or any chewed tobacco
Telling every doctor about the result
Alcohol, which adds to liver damage
Regular dental and throat checks
Dusty or smoky air where it can be avoided
Staying up to date with vaccines
Starting new medicines without asking your team
Being straight with you
What this page cannot tell you
It cannot tell you which problems you will develop, or when. Two people with the same fault can have very different lives. What your specific variant means is a question for the counsellor who ordered the test and the haematologist who follows you.
It cannot choose a treatment for you
Medicines that can lift blood counts, a stem cell transplant, and treatment for lung scarring each suit different people at different stages. Studies so far are small, because these conditions are rare, and specialists do not always agree. Your team will explain the options that apply to you.
Who this does not apply to
This page is about an inherited fault in a telomere gene. It does not apply to someone whose report shows a change only in a tumour or in the marrow, found while planning cancer treatment. That is tumour testing, explained on our targeted therapy pages. It also does not apply to relatives who tested negative for the family fault. They carry the same background risk as anyone else and need no extra checks because of this gene.
Bring your report, your blood count history and a list of your medicines to the first haematology visit.Commonly believed
Four things families tell us, and what is actually true
"A transplant will fix everything."
A transplant can replace failing marrow. It does not change the telomeres in the lungs, liver or mouth, so checks of those areas continue after a transplant.
"I feel fine, so I can skip the checks."
Early marrow and lung changes often cause no symptoms. Regular checks are how problems are found while there is still time to plan calmly.
"Chewing tobacco is safer than smoking."
It is not. Chewed tobacco raises the risk of mouth cancer, which is already raised in carriers. Stopping all tobacco is one of the most useful things a carrier can do.
"Telomere supplements can lengthen my telomeres."
No supplement has been shown to reverse an inherited telomere disorder. Some products sold online are unproven. Ask your haematologist before taking anything.
Questions we are asked
Common questions after a positive result
Do I need a bone marrow test straight away?
Not always. If your blood counts are normal, the haematologist may start with regular blood tests. A marrow test is usually advised if counts are low or falling, or before any transplant is planned.
Can medicines help my blood counts?
Some people respond to a hormone-based medicine that can lift blood counts for a while. It has side effects on the liver and elsewhere, so it is started and watched by a haematologist who knows these conditions.
Why must chemotherapy doses be lower for me?
Cells with short telomeres are more easily damaged. Standard doses of chemotherapy or radiation can harm the lungs, liver and marrow more than usual. Always tell any cancer team about your result before treatment is planned.
Should I tell my dentist?
Yes. Your dentist is often the first person to see a white patch or a sore that does not heal. Ask for a careful look inside the mouth at each visit, and report any change between visits.
Can I still have children?
Many carriers do. The counsellor explains the chance of passing the fault on, which depends on how it is inherited in your family, and options such as testing in a future pregnancy. These are personal choices, made in your own time.
Will Aarogyasri help with treatment costs?
Some treatments, such as a transplant, may be covered under government schemes, depending on eligibility. Stand-alone genetic tests usually are not. Ask the scheme desk at the hospital to check your entitlement before planning.
What should I do if I get breathless?
Tell your team soon, not at the next routine visit. Breathlessness that is new or getting worse needs checking, because lung scarring is easier to manage when it is found early.
Who do I call to get started?
Call the CION helpline with your report to hand. Someone will arrange a haematology appointment and help you plan the first checks, and a genetic counsellor visit if you have not had one yet.
Your Specialists
Meet CION's oncologists. Bring your family history or genetic report to them.
Our medical oncologists see people with a strong family history of cancer, arrange genetic counselling and testing where it fits, and plan the checks that follow.
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
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Sources
- GeneReviews (NCBI) — Dyskeratosis Congenita and Related Telomere Biology Disorders
- MedlinePlus Genetics — Dyskeratosis congenita
- MedlinePlus Genetics — TERT gene
- National Cancer Institute — Genetic Testing for Inherited Cancer Susceptibility Syndromes
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
Testing the family for a telomere gene faultWho else should be tested, and why donors come firstTelomere genes: which cancers and what riskWhat the regular checks are looking forShort telomere syndromes and cancer riskThe wider condition behind the resultBone marrow failure syndromes and cancer riskHow telomere disorders fit among inherited marrow conditions
Talk to us
Just received a positive result and not sure where to start?
Tell us what the report says. We will help you reach a haematologist who sees telomere biology disorders and plan the first checks. One helpline serves every CION centre.