Medical Oncologist
CION Cancer Clinics
BRIP1 in the family: who should be tested, and how | CION Cancer Clinics
Once one person tests positive for BRIP1, their parents, brothers, sisters and adult children each have a one in two chance of carrying the same fault. They are tested only for that one known change, which is simpler than a first test. This page explains who should be offered testing, why men matter, and how it works when relatives live far away. At CION Cancer Clinics, our oncologists explain what a gene result means for you and your family, and plan the checks that follow.
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
17+specialists on panel
15,000+patients treated
35+centres across Telangana & AP
4.8★ / 800+Google rating
On this page
- Who in the family should be tested for BRIP1?
- Which relatives are usually offered a test
- How family testing for BRIP1 actually works
- The words you will meet, in plain language
- A relative's targeted test compared with a first test
- Four things families tell us, and what is actually true
- What this page cannot tell you
- Common questions about testing relatives for BRIP1
The short answer
Who in the family should be tested for BRIP1?
Start with the closest adult relatives of the person who tested positive: parents, brothers, sisters and grown-up children. Each has a one in two chance of carrying the same fault. They are tested only for that one known change, which is quicker and simpler than a first test.
Why men must be included
A man with BRIP1 has no clearly proven extra risk himself, so families often leave brothers and fathers out. That is a mistake. A man can pass the fault to his daughters, and his result tells them whether they need a test of their own.
Why it spreads outward, one step at a time
Once the closest relatives are tested, the search moves along the side of the family where the fault came from. If an aunt tests positive, her children are offered a test. If she tests negative, her branch usually needs nothing more. This step-by-step approach is called cascade testing.
Why it is worth the effort
BRIP1 mainly raises ovarian cancer risk, and there is no reliable screening test for it. For a woman, knowing her status in good time is what allows her to plan surgery, children and checks. For a woman who tests negative, it lifts a worry she may have carried for years.
A relative who tests negative for the family's fault has the same risk as the general population for BRIP1 cancers.In order
Which relatives are usually offered a test
Not everyone needs testing at once. The order follows how closely each person is related.
Brothers and sisters
Each has a one in two chance. Sisters gain the most practical benefit, but brothers matter for their own daughters.
Parents
Testing a parent shows which side of the family the fault came from. That tells you whether to follow the mother's or the father's relatives next.
Adult children
Grown-up sons and daughters can be tested when they choose to be. Children under eighteen usually wait, because the risk begins in adult life.
A partner, in some families
A partner is not normally tested. It may be offered when a couple plans children and the partners are related, or when a partner's family also has ovarian cancer.
This protects against a rare, serious childhood condition when both parents carry a fault.Not sure whether this applies to you?
Ask an oncologistStep by step
How family testing for BRIP1 actually works
The first carrier gets a family letter
The counsellor gives a letter naming the gene and the exact variant. Relatives' doctors need this to order the right test. Ask for a copy in Telugu if it helps.
Relatives are told, in their own time
The carrier usually shares the news. Some families prefer the counsellor to explain it at a joint appointment.
Each relative has pre-test counselling
A short conversation about what a result would mean for them, including insurance and marriage questions, before any sample is taken.
A blood or saliva sample
The laboratory looks only for the family's known variant. This can be done in another city or country if the letter travels with the sample.
A result with a clear meaning
Positive means that relative joins the surveillance plan. Negative means they, and their children, do not carry the family's fault.
In the letter
The words you will meet, in plain language
- Cascade testing
- Testing relatives, step by step, for a fault already found in the family.
- Familial variant
- The exact gene change found in the first person tested. Relatives are checked for this change only.
- First-degree relative
- A parent, brother, sister or child. They share half their genes with you.
- Obligate carrier
- A relative who must carry the fault because of where they sit in the family tree, even if never tested.
- Predictive test
- A test in someone without cancer, to see whether they carry the family's fault.
- Consanguinity
- A marriage between relatives, such as cousins. It raises the chance that both partners carry the same fault.
Leave a number, we will call you
One field. No form to fill in, and no charge for the call.
Side by side
A relative's targeted test compared with a first test
Relative's targeted test
First person's panel test
Looks for one known change
Searches many genes for any change
Usually cheaper and quicker
Costs more and takes longer
A negative result is clearly reassuring
A negative result can be uninformative
Rarely produces uncertain findings
May report uncertain variants
Commonly believed
Four things families tell us, and what is actually true
"Only the women in the family need testing."
Men can carry and pass on BRIP1. Leaving them out means their daughters may never find out they need a test.
"If my mother tested negative, I must be negative too."
Only if the fault came through her side. If it came from your father's side, you still have a one in two chance.
"We should test the children now, to be safe."
BRIP1 risk begins in adult life. Waiting lets each child decide for themselves, and nothing is lost by the wait.
"Telling relatives will spoil marriage prospects."
It is a real worry in many families. A counsellor can help you decide who to tell and when, and how to talk about it before a marriage.
Being straight with you
What this page cannot tell you
It cannot tell you which relatives in your own family should come first. That depends on the shape of your family tree and on who is willing to be tested. What your specific variant means is a question for the counsellor who ordered the test.
It cannot make the conversation easy
Some relatives will want to know and some will not. Both choices are valid. A counsellor can help you plan how to share the news without pressure, and can speak to relatives directly if you prefer.
It cannot promise that a scheme will pay
Predictive testing in relatives without cancer is rarely covered by Aarogyasri, Ayushman Bharat or most insurance policies. Many families share the cost, often with the adult son or daughter who lives in the city paying for parents in the district. Ask the laboratory for a written quote before the sample is taken.
Who this does not apply to
If the first person's result was a variant of uncertain significance, relatives should not be tested for it. Most families never need BRIP1 testing at all. This page applies only once a harmful fault has been confirmed.
If you are unsure who to test next, call the helpline and book a family counselling appointment.Questions we are asked
Common questions about testing relatives for BRIP1
How much does a relative's test cost?
A targeted test for one known variant usually costs much less than the first person's panel. Prices vary between laboratories, so ask for a quote in writing. Some labs offer family rates when a relative has already been tested there.
Can my sister in another state be tested?
Yes. She needs a copy of the family letter and a doctor or counsellor near her to order the targeted test. The sample can be sent to any accredited laboratory that can look for the named variant.
My brother lives abroad. Can he use the same letter?
Usually yes. The letter names the gene and variant in standard notation, which laboratories anywhere can read. His local genetics service will arrange the test and advise on his own daughters.
What if a relative refuses to be tested?
That is their right. You can still share the letter so they have it if they change their mind. Their adult children can be offered testing directly, since each child's risk depends on their own inheritance.
My parents are no longer alive. How do we find the side?
Testing aunts, uncles or older cousins on each side can often show where the fault came from. Sometimes a stored tissue block from a parent's old surgery can be tested. Your counsellor will suggest the simplest route.
We married within the family. Does that change anything?
It raises the chance that both partners carry the same fault. If you are planning children, testing the partner may be offered, because a child who inherits two faulty copies faces a rare and serious condition.
Should a relative who tested negative still have screening?
For BRIP1 cancers, no extra screening is needed. They should still follow routine checks for their age, and any advice based on other parts of the family history.
Can the counsellor tell my relatives for me?
The counsellor will not contact relatives without your agreement. With your permission, they can meet relatives, explain the result and answer questions, including in Telugu.
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
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
- National Cancer Institute — Genetic Testing for Inherited Cancer Susceptibility Syndromes
- National Cancer Institute (PDQ) — Genetics of Breast and Gynecologic Cancers (PDQ) – Health Professional Version
- MedlinePlus Genetics — BRIP1 gene
- NCCN Guidelines for Patients — Genetic Testing for Hereditary Breast, Ovarian, Pancreatic, and Prostate Cancers
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
Talk to us
Need help planning who in the family to test?
Bring the family letter and a list of relatives on both sides. A genetic counsellor will help you decide who to test first and how to tell them. One helpline serves every CION centre.