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Breast Cancer Risk

Gail Model Risk Calculator

Estimates your 5-year and lifetime breast cancer risk based on validated NCI data. Takes about 2 minutes.

Step 1 of 2 — Eligibility

The Gail model is validated for women ages 35–85 without a prior breast cancer diagnosis or known BRCA mutation. Two quick questions before we begin.

Have you been diagnosed with breast cancer, or had chest radiation therapy before age 30?

Do you have a known BRCA1 or BRCA2 gene mutation?