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Breast Cancer Risk
Health
Breast Cancer Risk Calculator
Simplified Gail model for breast cancer risk estimation.
Current Age
Age at First Menstrual Period
≥14 years
12–13 years
<12 years
Age at First Live Birth
<20 years
20–24 years
25–29 or nulliparous
≥30 years
1st-Degree Relatives with BC
0
1
≥2
Prior Biopsies
0
1
≥2
Calculate
5-Year Risk
—
Lifetime Risk (to age 90)
—
Average 5-Year Risk (same age)
—