Breast Cancer risks

High-risk family history includes:

  • Two 1st-degree relatives with breast cancer, including 1 relative age <50
  • Three or more 1stor 2nd-degree relatives with breast cancer
  • 1stor 2nd-degree relative with breast & ovarian cancer
  • 1st-degree relative with bilateral breast cancer
  • Breast cancer in a male relative
  • Ashkenazi Jewish women with any 1stor 2nd-degree relatives with breast or ovarian cancer