08/12/2025
Or no family history! Don’t let them brush you off as they did to me because of no history.
No — it doesn’t matter whether the family history of breast cancer is on your maternal side or your paternal side.
We often hear from women whose doctors dismiss their risk because the family history is on their father’s side. That’s wrong — and here’s why: You inherit half your genes from each parent. So a mutation in breast cancer–related genes like BRCA1, BRCA2, CHEK2, ATM can come just as easily from your father as from your mother.
A paternal family history — like your dad’s mom, his sister, or even your dad himself — is just as important as a maternal history when assessing your risk. When genetic counselors and risk models (like Tyrer–Cuzick or CanRisk) evaluate your risk, they always:
- Include breast and ovarian cancers on both sides of the family
- Look at related cancers like prostate and pancreatic, which can be linked to the same genes
So when you talk to your doctor or fill out a family history form:
1. Include everyone — maternal and paternal relatives
Please don’t let anyone dismiss your risk just because it’s from your father’s side.