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Risk Factors

We don't know how to prevent breast cancer, but we do know good lifestyle habits help to reduce your risk. Approximately 38% to 42% of breast cancers in countries like Canada are linked to lifestyle-related risk factors. Unfortunately, there are some risk factors that you can’t control, including:

  • Breast density
  • A family history of breast cancer (only 5% to 10% of women who develop breast cancer have a genetic risk)
  • If you are post-menopausal
  • If you started your period before age 12
  • If you started menopause after age 55
  • If you never had a baby or had your first baby after age 30
  • If you have never breastfed

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SOURCE: Risk Factors ( )
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