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OBSP – Ontario Breast Screening Program

Women age 50 to 74 should have a mammogram every 2 years.

The Canadian Diagnostic network is Ottawas largest provider of the Ontario Breast Screening Program. Using the latest breast screening technology and with highly trained specialists, this program can save peoples lives. Please see if you qualify below and book your appointment.

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Ontario Breast Screening Program (OBSP)

The Ontario Breast Screening Program (OBSP) screens for 2 different groups of women who are eligible for breast cancer screening in Ontario: average risk and those at high risk.

Average Risk

The Ontario Breast Screening Program recommends that most women ages 50 to 74 get screened with mammography every 2 years. Women ages 50 to 74 are eligible for screening through the Ontario Breast Screening Program if they:

  • have no new breast cancer symptoms

  • have no personal history of breast cancer

  • have no current breast implants

  • have not had a mastectomy

  • have not had a screening mammogram within the last 11 months

High Risk

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

Cancer Screening for Women at High Risk.

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