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When family members blame each other after a genetic result | CION Cancer Clinics
Nobody is to blame for an inherited gene fault. Nobody chooses the genes they carry, and a parent cannot know what they might pass on. Yet a result often sets off blame at home, aimed at a mother, a daughter-in-law or the person who tested first. This page explains why that happens, what the science says, and what to say instead. At CION Cancer Clinics, our team helps carriers and their families plan checks, next steps and support after a genetic result.
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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
- Is anyone to blame for a gene fault in the family?
- What kinds of blame do families fall into?
- Why nobody could have known or stopped it
- Which words help explain this to the family?
- What to say instead of blaming
- Four beliefs that fuel family blame
- What this page cannot tell you
- Common questions about blame in families
The short answer
Is anyone to blame for a gene fault in the family?
No. Nobody chooses which genes they carry or which copy they pass to a child. A parent cannot feel a gene fault and usually has no way of knowing it is there. Blame after a genetic result almost always comes from grief and fear, not from anything a person did.
Why blame shows up anyway
A result gives a family something concrete to point at, at a time when everyone feels helpless. In many homes the finger points at a mother, a daughter-in-law or the side of the family that married in. Sometimes it points at the person who had the test, as if testing brought the fault into the house.
What the science actually says
For most inherited cancer faults, each child of a carrier has an even chance of inheriting it. That is decided at conception, by chance, like a coin toss. The fault may have passed silently through the family for generations before anyone was tested. The person who tested first did not create it. They found it.
Finding a fault is not the same as causing it.Where the finger points
What kinds of blame do families fall into?
These four patterns come up again and again. Naming them often takes some of the heat out of the room.
Blaming the mother's side
Many families assume inherited cancer comes through women. It does not. A father passes on a fault exactly as often as a mother does, and he can carry it without ever being ill.
Blaming the daughter-in-law
When a child is affected, the family the mother came from is often blamed first. Until testing shows which side the fault came from, that is only a guess, and it is frequently wrong.
What settles it
- Testing both parents for the known fault
- A family tree drawn by a counsellor
- Never an assumption about gender
Blaming a cousin marriage
Marrying a relative mainly raises the chance of rare conditions that need a faulty copy from both parents. Most inherited cancer faults need only one copy, so a cousin marriage does not explain them.
Blaming the person who tested
Some relatives feel the test itself caused the trouble. It did not. The fault was already present. Testing simply gave the family a chance to watch for it.
The first person to test often carries the most guilt, and deserves the most thanks.Not sure whether this applies to you?
Ask an oncologistHow a fault travels
Why nobody could have known or stopped it
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The fault may be generations old
Most inherited faults have been in a family long before anyone alive today. Relatives who carried it may have lived long lives or died of something unrelated.
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Each child's share is decided by chance
A parent carries two copies of each gene and passes one to each child. Which copy goes to which child is chance alone. No behaviour, diet or prayer changes it.
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Sometimes the fault is brand new
Occasionally a fault appears for the first time in one person, with no parent carrying it at all. In those families there is nobody further back to point at.
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Carriers usually feel completely well
A carrier has no symptom and no sign. Without a test, a parent simply cannot know what they might pass on.
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A test is the first moment anyone can know
Until the result arrived, the fault was invisible to everyone. From this point on, the family has information it never had before, and that is the useful part.
On the report
Which words help explain this to the family?
- Inherited
- Passed from a parent to a child through the egg or sperm, by chance, at conception.
- Dominant
- A pattern where one faulty copy is enough to raise risk. Each child of a carrier has an even chance of inheriting it.
- De novo
- A new fault that appears for the first time in one person, with neither parent carrying it.
- Carrier
- Someone who has the fault but not the cancer. Carriers usually feel entirely well.
- Penetrance
- How often a fault actually leads to cancer. It is never everyone who carries it.
- Consanguinity
- Marriage between blood relatives, such as cousins. It matters most for rare conditions that need two faulty copies.
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Side by side
What to say instead of blaming
Instead of saying
Try saying
"It came from your side"
"We do not know yet which side it came from"
"You gave this to our child"
"Neither of us could have known"
"Why did you have to get tested?"
"Now we can watch for it early"
"This family is cursed"
"This is a gene, and there are things we can do"
"Nobody must find out"
"Let us decide together who needs to know"
Commonly believed
Four beliefs that fuel family blame
"Breast cancer genes only come from the mother."
Fathers pass on these faults just as often. A man can carry a fault linked to breast and ovarian cancer and hand it to a daughter without ever being ill himself.
"The parent should have known and warned us."
A carrier has no symptoms. Unless someone in the family was tested earlier, there was nothing for them to know. Most parents learn about the fault at the same moment as their children.
"Something the mother did in pregnancy caused this."
An inherited fault is fixed at conception. Food, work, stress or anything else in pregnancy does not create one.
"If we stay quiet, the problem stays small."
Silence keeps relatives from a test that could help them. It usually does not protect anyone's reputation, and it can leave the next generation without answers.
Being straight with you
What this page cannot tell you
It cannot settle a quarrel that is really about something older. A genetic result often lands on top of existing tensions over money, marriage or care of an elderly parent. Those need time and sometimes a counsellor who works with families, not a page about genes.
It cannot say which side the fault came from
Only testing can do that, and sometimes even testing cannot. What your specific variant means, and where it is likely to have come from, is a question for the counsellor who ordered the test.
Who this does not apply to
If your family has no confirmed gene fault, there is nothing here to assign to anyone. Most cancer is not inherited at all. It comes from faults that build up in one person over a lifetime, and nobody passed it on.
If blame at home is becoming hard to live with, a genetic counsellor can meet the family together and explain the facts to everyone at once.Questions we are asked
Common questions about blame in families
Can testing prove which parent passed on the fault?
Often, yes, if both parents are tested for the known fault. Sometimes neither carries it, which means it arose new in the child. Knowing the source helps decide which relatives to test. It should never be used to assign guilt.
My in-laws blame me for my child's result. What can I do?
Ask a genetic counsellor to explain the result to the whole family together. Hearing from a professional that the fault can come from either side, and that nobody could have known, often changes the conversation far more than anything you say yourself.
I feel guilty for passing this on. Is that normal?
It is one of the most common feelings parents describe. It is understandable, but it is not deserved. You did not choose the gene and could not have known about it. Talking to a counsellor about that guilt can genuinely help.
Did our cousin marriage cause this cancer gene?
For most inherited cancer faults, no. They need only one faulty copy, so they appear in families whether or not relatives married each other. Cousin marriage matters more for rare conditions that need two faulty copies. Ask your counsellor about your specific gene.
Should we hide the result to protect the family name?
That is a family decision, but hiding it keeps relatives from a test that could help them. You can share it privately, one relative at a time, without making it public. A counsellor can help you plan who hears and how.
Can a fault skip a generation and then reappear?
The fault itself does not skip. A parent can carry it without developing cancer and pass it to a child who does. It looks like a skipped generation, but the fault was there the whole time, unseen.
Is it anyone's fault that the cancer was found late?
Without a known family fault, there was no reason for extra checks. Now that the fault is known, relatives can be watched more closely. Looking forward helps the family more than looking back.
Where can our family get help talking about this?
A genetic counsellor can meet several relatives together and answer their questions directly. Call the CION helpline if you are not sure where to start, and someone will point you to the right clinic.
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
- National Cancer Institute — Genetic Testing for Inherited Cancer Susceptibility Syndromes
- MedlinePlus Genetics — What are the different ways a genetic condition can be inherited?
- MedlinePlus Genetics — What is a gene variant and how do variants occur?
- Cancer Research UK — Inherited cancer genes and increased cancer risk
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
Consanguineous families and cascade testingWhat a cousin marriage does and does not explainWhen a relative does not want to knowRespecting a refusal without a riftWhat to send a relative: the family letterSharing the facts calmly, in writingWhen testing reveals unexpected parentageWhen a result raises harder questions
Talk to us
Could a counsellor help your family hear this together?
Tell us what the result says and who is struggling with it. We can arrange a counsellor to explain it to the family at one sitting. One helpline serves every CION centre.