The Ontario Breast Screening Program recommends that women ages 30 to 69 who meet the High Risk Ontario Breast Screening Program eligibility criteria get screened every year with both mammography and breast magnetic resonance imaging (MRI) (or screening breast ultrasound if MRI is not medically appropriate).
The High Risk Ontario Breast Screening Program does not accept new participants over age 70. However, when participants already in the program turn 70, the program will continue to screen them with mammography only every year until they are age 74.
For more information on eligibility for the High Risk Ontario Breast Screening Program, see Breast Cancer Screening for Women at High Risk.