What are the risk factors for breast cancer in men?

Updated: Apr 11, 2019
  • Author: Lars J Grimm, MD, MHS; Chief Editor: Eugene C Lin, MD  more...
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Risk factors for male breast cancer include BRCA mutation, estrogen exposure/androgen insufficiency (Klinefelter syndrome, obesity, cirrhosis, exogenous estrogen therapy, testicular abnormality), and radiation exposure. [16, 19]

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