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PubMed This is a summary of 16 peer-reviewed journal articles Updated
Oncology · Male Breast Cancer

What Is the Male Breast Cancer Risk for BRCA Carriers?

At a Glance

Men with a BRCA2 mutation have a 6.8% to 7.0% lifetime risk of developing breast cancer, while BRCA1 carriers face a 1.2% to 1.5% risk. Male carriers also have elevated risks for prostate and pancreatic cancers, requiring specialized screening starting as early as age 35.

In this answer

4 sections

01

Why BRCA2 Matters More for Male Breast Cancer

02

Beyond Breast Cancer: Other Risks for Men

03

Passing It On: Risk to Your Children

04

Taking Charge of Your Health

Yes, men can and do develop breast cancer, especially if they carry a genetic mutation [1]. While breast cancer is much less common in men than in women, having a BRCA mutation significantly increases a man’s lifetime risk [2]. The specific risk depends heavily on which mutation you carry: men with a BRCA2 mutation have approximately a 6.8% to 7.0% lifetime risk of developing breast cancer [3][4]. Men with a BRCA1 mutation face a lower lifetime risk, estimated at about 1.2% to 1.5% [4][5].

Why BRCA2 Matters More for Male Breast Cancer

While both mutations increase your risk, BRCA2 is recognized as a major genetic driver for male breast cancer [6][2]. In fact, a pathogenic (disease-causing) BRCA2 mutation is found in roughly 10% to 11% of all men diagnosed with breast cancer [3][7]. BRCA1 mutations, by contrast, are only found in about 1.5% to 2% of male breast cancer patients [5]. Because of this, BRCA2 is considered to have a much higher penetrance (the likelihood that a person with the mutation will actually develop the disease) for breast cancer in men [8][9].

Beyond Breast Cancer: Other Risks for Men

A BRCA mutation doesn’t just impact breast tissue; it also increases the likelihood of developing other cancers. Men carrying these mutations have a heightened risk for prostate cancer, pancreatic cancer, stomach cancer, and melanoma [8][9][10]. For instance, men with BRCA2 mutations often develop prostate cancer at younger ages and with more aggressive features compared to men without the mutation [11][12]. This means that if you are a male carrier, your care team needs to monitor your whole-body health, not just your chest tissue.

Passing It On: Risk to Your Children

A common concern for men with a BRCA mutation is the risk of passing it on. Because BRCA mutations are hereditary, a man with a mutation has a 50% chance of passing it to each of his children, whether they are male or female [10][9]. Working with a certified genetic counselor can help you navigate these discussions and plan for your family’s testing needs [13].

Taking Charge of Your Health

Because male breast cancer is rare in the general population, standard screening guidelines are not always as clear-cut as they are for women [14]. However, knowing you carry a BRCA mutation empowers you to take proactive steps [10]:

  • Breast Self-Exams: Guidelines suggest that men with a BRCA mutation learn to perform monthly breast self-exams starting around age 35 [10][14]. Familiarize yourself with how your chest normally feels so you can easily identify and report new painless lumps, skin dimpling, or nipple changes.
  • Routine Clinical Exams: Starting around age 35, your doctor will likely recommend clinical breast exams every 12 months to professionally check for abnormalities [10].
  • Imaging: While not routine for all asymptomatic men, specialists might recommend regular breast imaging, such as a mammogram, for men who have prominent breast tissue (gynecomastia) or a very strong family history of the disease [15][16].
  • Prostate Screening: Given the elevated risks, experts often recommend that men with a BRCA2 mutation begin regular prostate cancer screening (such as PSA blood tests) starting at age 40, which is earlier than the general population [12][10].

Common questions in this guide

Do men with a BRCA mutation need mammograms?
Routine mammograms are not generally required for all men with a BRCA mutation. However, your doctor may recommend regular breast imaging if you have prominent breast tissue, known as gynecomastia, or a very strong family history of the disease.
At what age should male BRCA carriers start prostate cancer screening?
Because of the elevated risk and potential for aggressive disease, experts often recommend that men with a BRCA2 mutation begin regular prostate cancer screening with a PSA blood test starting at age 40.
Can a father pass a BRCA mutation to his sons?
Yes, a father with a BRCA mutation has a 50% chance of passing the mutated gene to each of his children, regardless of whether they are male or female.
What should men look for during a breast self-exam?
Men should check their chest tissue for any new physical changes, such as a painless lump, skin dimpling, or changes to the nipple. Becoming familiar with how your chest normally feels helps you identify any unusual abnormalities quickly.
What other cancers are male BRCA carriers at risk for?
Beyond breast cancer, male BRCA carriers have a heightened risk for developing prostate cancer, pancreatic cancer, stomach cancer, and melanoma. Your care plan should include monitoring your whole-body health, not just your chest tissue.

Questions to Ask Your Doctor

Curated prompts to bring to your next appointment.

  1. 1.Given my specific BRCA mutation and family history, at what age do you recommend I begin routine prostate screening and clinical breast exams?
  2. 2.Would you recommend baseline breast imaging for me, or is that only necessary if I develop symptoms or have more prominent breast tissue?
  3. 3.Can you refer me to a genetic counselor to discuss the best way to talk to my children and siblings about their 50% risk and testing options?
  4. 4.What specific changes should I be feeling for during a monthly breast self-exam, and what is considered a normal texture for my chest tissue?
  5. 5.Besides breast and prostate cancer, are there other cancer screenings (like for pancreatic cancer or melanoma) that we need to add to my long-term care plan?

Questions For You

Tap a prompt to share your answer — we'll use it plus this page's context to start a tailored conversation.

Related questions

Does Ovary Removal Reduce BRCA Breast Cancer Risk?How Do PARP Inhibitors Work for BRCA-Mutated Cancers?Can Tamoxifen Lower Breast Cancer Risk in BRCA Carriers?How Much Does Mastectomy Reduce Breast Cancer Risk?How to Find an Expert in Hereditary Breast & Ovarian CancerHow Do I Prepare a Family Cancer History for Genetics?Is HRT Safe After Ovary Removal for BRCA Carriers?What is the Difference Between BRCA1 and BRCA2 Mutations?Do I Meet the NCCN Criteria for BRCA Genetic Testing?What Causes PARP Inhibitor Resistance in BRCA Cancers?What is a VUS (Variant of Uncertain Significance) in BRCA?What is Cascade Testing for BRCA and HBOC Mutations?What is the BRCA Mutation Rate in Ashkenazi Jews?What Age Should BRCA Carriers Have Ovaries Removed?What Is My Pancreatic Cancer Risk with a BRCA Mutation?What Genes Besides BRCA Cause Breast & Ovarian Cancer?When Should BRCA Carriers Start Breast Cancer Screening?Which Specialists Treat Hereditary Breast & Ovarian Cancer?Why is Platinum Chemo Effective for BRCA Cancers?

References

References (16)
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    Discussion and Optimization of the Male Breast Cancer Patient Experience.

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    Journal of breast imaging 2023; (5(3)):339-345 doi:10.1093/jbi/wbac086.

    PMID: 38416881
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    A 64-Year-Old Man With Germline BRCA2-Mutated Breast Cancer: Known and Unknown Aspects of Male Breast Cancer.

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    Prevalence of Cancer Predisposition Germline Variants in Male Breast Cancer Patients: Results of the German Consortium for Hereditary Breast and Ovarian Cancer.

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    Five Italian Families with Two Mutations in BRCA Genes.

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    Cancer Risks Associated With BRCA1 and BRCA2 Pathogenic Variants.

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    Management Strategies of Breast Cancer Patients with BRCA1 and BRCA2 Pathogenic Germline Variants.

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    Characterization of the Cancer Spectrum in Men With Germline BRCA1 and BRCA2 Pathogenic Variants: Results From the Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA).

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    Interim Results from the IMPACT Study: Evidence for Prostate-specific Antigen Screening in BRCA2 Mutation Carriers.

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This page provides educational information about male breast cancer risks for BRCA mutation carriers. It is not a substitute for professional medical advice, diagnosis, or genetic counseling. Always consult your healthcare provider about your specific risk factors.

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