Medical Oncologist
CION Cancer Clinics
Does the lab reanalyse your genetic data later for free? | CION Cancer Clinics
Some labs will look at your result again later, many will not, and very few do it automatically. Whether it is free depends on each lab's policy. This matters because knowledge about genes keeps growing, and an uncertain finding today may be understood tomorrow. This page explains what a later review can and cannot do, how to ask for one, and what to check before you test. At CION Cancer Clinics in Hyderabad, our oncologists review your family history with you and guide you to the right genetic counselling and testing.
NG
Medically reviewed by Dr. Naresh GunduConsultant Medical Oncologist · MBBS, DNB (Internal Medicine), DM (Medical Oncology, AIIMS) · last reviewed September 2026, next review due September 2027
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On this page
- Will the lab look at my result again later, for free?
- What exactly can a lab look at again?
- How do I ask for my result to be looked at again?
- The words you will meet, in plain language
- Questions to ask the lab, and why they matter
- Four things families assume about reanalysis
- What this page cannot tell you
- Common questions about reanalysis
The short answer
Will the lab look at my result again later, for free?
Some labs will, many will not, and very few do it automatically for everyone. Whether a later review is free depends on the lab's own policy, which is usually written in the small print of the test request form. The time to ask is before the sample is taken.
Why a result can change at all
Knowledge about genes grows every year. A change that a lab could not explain when you tested may be understood later, as more families are studied around the world. New genes are also linked to cancer over time. So a report is the lab's best reading on the day it was signed, not a final word.
Two different things people call reanalysis
The first is the lab updating its view of a variant it already reported to you. The second is re-reading all of your stored data against newer knowledge. The first is more common and is often done without charge. The second is more useful after a large test such as an exome, and is more often charged.
A report is a snapshot. Knowing how it will be kept up to date is part of choosing a lab.What can be reviewed
What exactly can a lab look at again?
Four kinds of later review, from the most common to the least.
A reported variant is reclassified
The lab changes its view of a variant already on your report, for example an uncertain change now judged harmless. Good labs send an amended report to the doctor who ordered the test.
Stored data is re-read
The lab reviews all the data from your original test against current knowledge. No new sample is needed. This matters most after an exome or genome test.
New genes are added
This is only possible if those genes were read in the first place. A small panel reads only the genes it lists, so adding a new one usually means a new test.
Worth knowing
- Exome and genome data can often be re-read
- Panel data usually cannot be widened
A fresh test
Sometimes the older method missed a type of fault, such as a large missing piece of a gene. Then a new sample and a new test are the only way forward.
Not sure whether this applies to you?
Ask an oncologistAsking for a review
How do I ask for my result to be looked at again?
Find the report and its reference
Every report carries the lab's name and a sample or accession number. Keep a photo of the full report, not only the first page, in a safe place.
Go through your counsellor or doctor
Most labs accept a review request only from the clinician who ordered the test, or one who has taken over your care. A counsellor can also judge whether a review is worth asking for.
Ask what the policy says
Ask whether a review is free, whether it is free only once, and how long the lab keeps your data. Some labs store it for years, others for much less.
Give a reason when you can
A new cancer in the family, a new diagnosis for you, or a new gene in the news are all good reasons. A reason helps the lab focus the review.
Keep your details current
If you change your phone number or move, tell the hospital. An amended report is of no use if nobody can reach you with it.
On your report
The words you will meet, in plain language
- Variant of uncertain significance (VUS)
- A spelling change the lab cannot yet call harmful or harmless. It should not change your treatment while it stays uncertain.
- Reclassification
- The lab changes its label for a variant, up or down, because new evidence has come in.
- Reanalysis
- Re-reading your stored data against newer knowledge, without taking a new sample.
- Amended report
- A new version of your report that replaces the old one. It should say clearly what has changed and why.
- Data retention
- How long the lab keeps your raw data and sample. Once it is deleted, reanalysis is no longer possible.
Leave a number, we will call you
One field. No form to fill in, and no charge for the call.
Before you test
Questions to ask the lab, and why they matter
Ask this
Because
Is a later review free, and how often?
Policies range from free on request to a fresh fee
Will you tell my doctor if a variant changes?
Not every lab contacts anyone on its own
How long do you keep my data?
No data means no reanalysis
Can I get a copy of my raw data?
It may let another lab review it later
Commonly believed
Four things families assume about reanalysis
"The lab will call me if anything changes."
Some labs send an amended report to the ordering doctor. Few contact the patient directly, and some do nothing unless asked. Keeping in touch with your counsellor is the safest route.
"An uncertain result will one day turn out to be harmful."
When uncertain variants are reclassified, most are moved to harmless, not harmful. That is exactly why an uncertain result should not lead to surgery or a change in treatment.
"Reanalysis means giving blood again."
Usually not. A review of stored data needs no new sample. A new sample is needed only when the original test did not read the part of the gene now in question.
"Reanalysis always finds something new."
Most reviews confirm the original answer. It is still worth asking when something changes in the family, because the rare change can matter a great deal.
Being straight with you
What this page cannot tell you
It cannot tell you your own lab's policy. That is set by each lab and can change, so the answer is on your test request form or with the lab itself. Your counsellor can find out for you.
It cannot say whether your variant will change
Nobody can predict which variants will be reclassified, or when. What your specific variant means is a question for the counsellor who ordered the test, not for a search engine or a family group chat.
Who this does not apply to
If your report was clearly negative for a known family fault, a review rarely adds anything. This page also covers only inherited testing. Reviews of tumour tests work differently and are covered under targeted therapy. Most people reading this will never need a reanalysis at all.
If something has changed in your family since you tested, that alone is a good reason to call your counsellor.Questions we are asked
Common questions about reanalysis
How often should a genetic result be reviewed?
There is no fixed timetable. A review makes most sense when something changes: a new diagnosis in the family, a new cancer for you, or an uncertain variant on your report. Your counsellor can judge whether enough time has passed for a review to be useful.
Can I request a review myself?
Most labs prefer the request to come from a clinician, because the result has to be explained when it comes back. You can start the process by calling your counsellor or the hospital that arranged the test.
My report has a VUS. Should I ask for reanalysis now?
Ask how the lab will tell you if it is ever reclassified, and make sure your contact details are current. Asking again too soon rarely helps, because new evidence takes time to build up. Meanwhile the uncertain variant should not change your care.
What if the lab has closed or will not respond?
If you have the raw data file, another lab may be able to review it. If you do not, a new test may be needed. A counsellor can advise which is sensible for your report.
Can reanalysis add genes that were not tested?
Only if those genes were read in the first place. Exome and genome data can often be re-read for newer genes. A panel reads only the genes it lists, so a new gene usually needs a new test.
Does an amended report affect my relatives?
It can. If a variant is upgraded to harmful, relatives may now be offered testing. If it is downgraded, relatives who were being watched because of it may be able to stop. Your counsellor will help you tell them.
Is reanalysis the same for a tumour test?
No. Tumour tests describe the cancer at one point in time and are usually repeated on new tissue rather than reanalysed. This page is about inherited tests only.
Who can help me check my lab's policy?
Your genetic counsellor or the hospital that arranged the test. If you are unsure who that is, call the CION helpline with your report, and someone will help you find out what the lab offers.
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
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Sources
- American College of Medical Genetics and Genomics — Points to consider in the reevaluation and reanalysis of genomic test results: a statement of the ACMG
- MedlinePlus Genetics — What do the results of genetic tests mean?
- ClinVar (NCBI) — ClinVar: public archive of variant classifications
- 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.
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Has something changed since you were tested?
Tell us what your report says and what has changed in the family. We will help you work out whether a review is worth asking for. One helpline serves every CION centre.