The Breast Lab
Breast Cancer Risk Assessment
Answer a few questions about your personal and family history to receive your estimated lifetime risk — based on the Tyrer-Cuzick model.
1
Personal2
Reproductive3
Breast History4
Family History5
ResultsPersonal Information
Basic details that form the foundation of your risk calculation.
Helps calibrate population-based risk
Reproductive History
Hormonal and reproductive factors significantly influence breast cancer risk.
Current or past use of estrogen/progesterone therapy after menopause
Breast History
Previous findings or procedures that affect your personal risk profile.
From a previous mammogram report — usually described as A, B, C, or D
Family History
Check all relatives who have had breast or ovarian cancer. Leave all unchecked if unknown.
✓
Mother
Breast cancer
✓
Mother
Ovarian cancer
✓
Sister
Breast cancer
✓
2nd Sister
Breast cancer
✓
Maternal Grandmother
Breast cancer
✓
Maternal Aunt
Breast cancer
✓
Maternal Aunt
Ovarian cancer
✓
Paternal Grandmother
Breast cancer
✓
Paternal Aunt
Breast cancer
✓
Paternal Aunt
Ovarian cancer
✓
Father
Breast cancer
✓
Daughter
Breast cancer
Your Estimated Lifetime Risk
—
estimated lifetime risk of breast cancer
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Where You Fall on the Risk Scale
0%
15% — Avg / Intermediate
20% — Intermediate / High
40%+
Average Risk (under 15%)
Intermediate Risk (15–20%)
High Risk (above 20%)
10-Year Risk
—
Estimated risk over the next 10 years
Population Average
~12%
Average lifetime risk for U.S. women
Personalized Recommendations
This tool provides an educational risk estimate based on factors from the Tyrer-Cuzick model and is not a substitute for professional medical advice. Results are approximations only. Please consult your doctor or a genetic counselor for a comprehensive assessment. The Breast Lab is not a healthcare provider and does not make clinical decisions.