If you have recently been diagnosed with breast cancer and have a family history of the disease, you may be wondering whether to have BRCA genetic testing before you choose your surgery. This question matters - and the answer may be different depending on when you ask it.
Getting your BRCA result before your surgical date lets you and your team plan a procedure that fits your complete risk picture - your cancer now and your lifetime risk. This guide explains what the test does, who should consider it before surgery, and how a positive result may change your surgical options, including robotic techniques.
What Is BRCA Genetic Testing?
Your BRCA1 and BRCA2 genes normally help protect your cells from becoming cancerous. They repair damaged DNA before cells can grow out of control. Some people are born with a hereditary change - called a pathogenic variant - in one of these genes. When that happens, the gene no longer does its protective job reliably.
You need just a blood or saliva sample. The laboratory analyses your DNA and checks it against known sequences. Results typically take several weeks, though NHS fast-track pathways can provide results faster if you need them before surgery.
BRCA1 and BRCA2 are the most studied genes. Other genes like PALB2, ATM, and CHEK2 can also increase breast cancer risk. Breast Cancer Now notes that some NHS trusts now include these in a standard test panel for eligible patients.
Who Is Usually Offered BRCA Testing on the NHS?
Not everyone newly diagnosed gets a referral for genetic testing, though more people are becoming eligible. According to NHS guidance on genetic testing eligibility criteria, you are more likely to be offered testing if:
- you were diagnosed with breast cancer before the age of 45
- you have a close relative who was also diagnosed with breast cancer before the age of 45
- you have been diagnosed with both breast and ovarian cancer
- you have Ashkenazi Jewish ancestry
- you have a family history suggesting a hereditary pattern, such as several close relatives diagnosed at a young age
- you have triple-negative breast cancer and were diagnosed before the age of 60
If one of these applies to you and no one has offered testing, you can raise it with your breast care nurse or oncologist. Many women find that sharing their family history leads to a referral they wouldn't otherwise have received.
What Do the Lifetime Risk Figures Mean for You?
Understanding the numbers can help you think more clearly about your surgical choices - though they should always be considered alongside your individual situation, not in isolation.
Breast Cancer Now reports that between 65 and 79 out of every 100 women who carry an altered BRCA1 gene will develop breast cancer during their lifetime. For BRCA2 carriers, the estimated figure is between 40 and 60 out of 100. By comparison, the lifetime risk in the general population is around 12 to 13 out of 100.
These figures explain why a positive BRCA result changes your surgical conversation. Your surgical team now considers both your current cancer and managing your lifetime risk in the opposite breast - and in some cases your ovaries.
How Does a BRCA Result Change Your Surgical Options?
When you know your BRCA status before surgery, your team can tailor your plan to your full risk picture. Women who had their results before surgery were much more likely to choose contralateral risk-reducing mastectomy - 45% compared with 2% who found out afterward. This timing changes what your surgical team can recommend.
| Surgical option | BRCA-positive | BRCA-negative or unknown |
|---|---|---|
| Lumpectomy (breast-conserving surgery) | Possible in many cases; your team may recommend close monitoring given the higher recurrence risk with hereditary variants | Often the first option discussed for eligible smaller tumours; generally carries a lower long-term local recurrence risk |
| Single (unilateral) mastectomy | Treats the affected breast; the opposite breast still carries a significantly elevated lifetime risk that your team will want to address separately | Treats the affected breast; the opposite breast carries a risk level closer to the general population baseline |
| Bilateral mastectomy (both breasts) | May be discussed as an option to reduce future risk; research suggests contralateral prophylactic mastectomy may reduce the risk of cancer in the opposite breast by around 91% (source) | Rarely recommended unless other elevated-risk features are present alongside the diagnosis |
| Nipple-sparing mastectomy | Available for carefully selected BRCA carriers; tumour location relative to the nipple and a detailed surgeon assessment determine eligibility | A good option for many patients; preserves the nipple-areola complex for a more natural appearance after reconstruction |
| Robotic surgical approach | Available to eligible BRCA carriers at specialist centres undertaking nipple-sparing or skin-sparing mastectomy with robotic technique | Available to eligible patients regardless of BRCA status at centres equipped with robotic technology |
In short, a positive BRCA result usually expands your surgical options. It gives you and your team more information to consider, and sometimes means one surgery can handle both your current cancer and your future cancer risk.
Can You Still Choose Breast-Conserving Surgery If You Carry a BRCA Variant?
Yes - carrying a BRCA variant doesn't require mastectomy. Many BRCA carriers choose lumpectomy, especially when their cancer is caught early. For early-stage breast cancer, survival outcomes are similar between lumpectomy plus radiation and mastectomy for most patients, including many BRCA carriers.
But here's an important point: BRCA carriers who choose lumpectomy have a higher risk of cancer returning in the same breast over time than non-carriers. This is because the hereditary risk stays in any remaining breast tissue, not because of incomplete surgery. If you choose lumpectomy, your team will recommend close monitoring.
No single surgical path is universally correct for BRCA carriers. Your tumour characteristics, your age, your feelings about body image, your thoughts on future risk, and your personal circumstances all shape what is right for you specifically. To understand more about who tends to be a good candidate for different approaches, our guide on eligibility factors for robotic breast cancer surgery sets out the key criteria in plain language.
How Does BRCA Status Affect Robotic Surgery Options?
Robotic surgery is a technique - a way of carrying out an operation with greater precision and smaller incisions - rather than a procedure in itself. The robotic platform can be used for lumpectomy, nipple-sparing mastectomy, skin-sparing mastectomy, and certain reconstruction procedures. What this means in practice is that your BRCA status shapes which procedure your team recommends, while the robotic technique determines how that procedure is performed.
For BRCA carriers choosing mastectomy, nipple-sparing mastectomy with robotic surgery is worth considering. It removes breast tissue while keeping the skin and nipple-areola complex, creating a more natural appearance after reconstruction. Whether you're eligible depends on tumour location and your surgeon's assessment. Our article on nipple-sparing mastectomy with robotic reconstruction explains this further for women weighing their options.
BRCA carriers having bilateral mastectomy often choose robotic surgery. Performing both procedures through smaller, less visible incisions - sometimes called a hidden-scar technique - reduces discomfort after surgery and speeds recovery compared to traditional open surgery.
When Should You Get Tested - Before or After Surgery?
The timing of genetic testing matters more than most people realise at the point of diagnosis. The clearest benefit of testing before surgery is that you can make your surgical choice with full information. If your result comes back after surgery has already taken place, you may face a second operation to address the opposite breast - and a second surgery means a second recovery period.
NHS pathways now prioritize speed. Mainstream testing - where your oncology or surgery team starts the test directly instead of waiting for a genetics referral - gets you results faster before surgery. A 2025 study found that women who had BRCA testing early were more likely to choose risk-reducing bilateral mastectomy and had better survival outcomes. This shows why early testing matters.
If your pathway is slow or testing hasn't been offered despite your family history, you can ask your team directly. Some women arrange private testing alongside NHS care and share results with their NHS team.
Getting a Second Opinion on Your Surgical Plan
If you have received a surgical recommendation and are not sure how your genetic results fit in - or if you have been told mastectomy is the only option and would like to understand whether a more preserving approach might suit you - seeking a second opinion before committing is entirely reasonable. Most clinical guidance actively encourages it.
Many women find that a second opinion confirms their original advice, giving them confidence. Others learn about options they hadn't heard before. If you want to explore your options, you can arrange a confidential review with Art of Healing Cancer, whose surgeons work with BRCA carriers and know about robotic options. Remote reviews can often be set up before you decide to travel.
Our guide on why a second opinion on mastectomy and robotic surgery matters may also help you understand what to ask and what to bring to that conversation.
Other Genes That May Affect Your Surgical Plan
BRCA1 and BRCA2 are the most commonly discussed hereditary breast cancer genes, and others matter too. Variants in PALB2, ATM, CHEK2, and TP53 can also raise breast cancer risk, sometimes significantly. Research on how these variants affect surgical decisions is still developing. Your genetics team or oncologist can best explain what your results mean for your surgical plan.
If you have a strong family history but your BRCA results are negative, ask whether testing for other hereditary variants can be arranged through your trust.
Practical Steps Before Your Surgical Decision
- Ask your breast care nurse or oncologist whether you meet the criteria for genetic testing based on your age, diagnosis, and family history.
- Find out how long results are likely to take on your current pathway, and whether a mainstream or fast-track test can be arranged before your surgery date.
- Gather as much family history information as you can before your genetics appointment, including which relatives were affected and at what age.
- Ask your team what surgical options would be available to you if your result is positive, and what options would be available if it is negative.
- If you are uncertain about your surgical recommendation after receiving your result, ask about a second opinion from a centre with experience in robotic and nipple-sparing approaches for BRCA carriers.
When to Talk to Your Doctor
Speak to your oncologist or breast care nurse if you have a family history of breast or ovarian cancer that has not yet been discussed with your team, if you would like to know whether BRCA testing fits within your current care pathway, or if you have received a result and are unsure how it should shape your choice of surgery. If you already have a surgical recommendation and you carry a BRCA variant, ask specifically how that finding has been factored into the advice you have been given.
If you'd like to explore your options privately, including robotic breast surgery for BRCA carriers at a specialist centre, you can contact BreastCancer.One, where female coordinators are there to help you through the process.
This article is for general information and is not a substitute for medical advice. Always consult your oncologist or care team about your specific situation.