Get Screened for Breast Cancer

With a referral from a physician or contact the Ontario Breast Screening Program (OBSP)
1 800 668-9304

Who can get screened?

  • Women aged 50 and over may refer themselves to the OBSP. To self-refer, please call an OBSP site directly to make an appointment (1 800 668-9304)
  • Women between the ages of 30 to 49 who are at high risk will need a referral from their doctor or nurse practitioner to be screened at an OBSP centre
  • Women should have a mammogram every 2-3 years, however, yearly mammograms are recommended for women at high risk for breast cancer

Breast Cancer Screening and the Ontario Breast Screening Program (OBSP)

  • A mammogram is a test that uses low-dose X-rays to look for changes in the breasts that may indicate early signs of breast cancer even when the changes are too small for a woman or her doctor to feel or see
  • Breast cancer screening rates have been improving since 2002 but still, less than 70% of eligible women are getting screened

Ontario Breast Screening Program
First established in 1990, the Ontario Breast Screening Program (OBSP) provides high quality breast cancer screening services to women living in Ontario. It is operated by Cancer Care Ontario and funded by the Ontario Ministry of Health and Long-Term Care.

The OBSP currently accepts women who fall into the following two categories:

  • Women at average risk of developing breast cancer, age 50 and over
    Evidence shows that regular mammograms for women who are at average risk and 50 years or older, are the most effective way to detect breast cancer early. Average risk means you have no other risk factors simply than being a woman and being older (i.e. 50 and over)
  • Women at high risk of developing breast cancer, age 30 to 69
    As of July 1 2011, women in Ontario aged 30 to 69 who are at high risk for breast cancer due to genetic factors or a personal or family history suggestive of hereditary breast cancer can receive an annual breast screening MRI and mammogram through the OBSP

Additional Information

  • To learn more about the OBSP and its newly expanded services for women at high risk aged 30 to 69, visit
  • For more information about breast health and breast screening call the Canadian Cancer Society’s Cancer Information Service toll-free at 1 888 939-3333 or e-mail

From – Cancer Quality Council of Ontario and Cancer Care Ontario