Breast and ovarian cancer are among the most common cancers in women, and research shows they are biologically connected—mainly through genetics.

Shared Genetic Risk
The strongest link comes from BRCA1 and BRCA2 gene mutations, which normally repair damaged DNA. Mutations in these genes greatly raise cancer risk: “Women with a BRCA1 mutation have up to a 72% lifetime risk of breast cancer and up to a 44% risk of ovarian cancer,” while BRCA2 mutations carry “up to a 69% risk of breast cancer and a 17% risk of ovarian cancer.” These mutations can be inherited from either parent.

Family History
If your mother, sister, or grandmother had breast or ovarian cancer—especially at a young age—your own risk may be higher. Genetic counseling and testing can help guide prevention and screening.

Other Risk Factors
Shared risks include age (especially after 50), long-term hormone therapy, early menstruation or late menopause, and not having children.

Why It Matters
Knowing the link allows women to take preventive steps: “Increased screening, preventive surgery, and certain medications” can lower risks. Early detection saves lives, especially since ovarian cancer is often caught late.

Conclusion
The connection is real. If concerned, “speak with a healthcare professional, consider genetic testing, and explore your options.” Knowledge can be lifesaving.