Estimates a woman's risk of developing invasive breast cancer over the next 5 years and lifetime. This calculator uses the Gail Model, which considers factors such as age, race, personal history of breast biopsies, family history of breast cancer, and age at first menstrual period and childbirth.
Start with your values, or try a preset.
Enter Age (years), Race/Ethnicity, Age at first menstrual period (menarche), Number of previous breast biopsies, Did any previous breast biopsies show atypical hyperplasia?, Number of first-degree relatives (mother, sister, or daughter) with breast cancer, and Age at first live birth (years) in the units shown.
Read Lifetime Risk of Invasive Breast Cancer and 5-Year Risk of Invasive Breast Cancer in the results panel. Results update as you change the inputs.
Choose a preset to load an example, then adjust the values for your situation.
See the inputs and their calculated results.
Age (years): 50; Race/Ethnicity: White; Age at first menstrual period (menarche): 12 years; Number of previous breast biopsies: 0; Did any previous breast biopsies show atypical hyperplasia?: No; Number of first-degree relatives (mother, sister, or daughter) with breast cancer: 0; Age at first live birth (years): 25 years
Lifetime Risk of Invasive Breast Cancer: 0.12 %; 5-Year Risk of Invasive Breast Cancer: 0.01 %
Age (years): 55; Race/Ethnicity: White; Age at first menstrual period (menarche): 11 years; Number of previous breast biopsies: 1; Did any previous breast biopsies show atypical hyperplasia?: No; Number of first-degree relatives (mother, sister, or daughter) with breast cancer: 1; Age at first live birth (years): 30 years
Lifetime Risk of Invasive Breast Cancer: 0.12 %; 5-Year Risk of Invasive Breast Cancer: 0.01 %
Age (years): 60; Race/Ethnicity: White; Age at first menstrual period (menarche): 12 years; Number of previous breast biopsies: 0; Did any previous breast biopsies show atypical hyperplasia?: No; Number of first-degree relatives (mother, sister, or daughter) with breast cancer: 0; Age at first live birth (years): 35 years
Lifetime Risk of Invasive Breast Cancer: 0.12 %; 5-Year Risk of Invasive Breast Cancer: 0.01 %
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