Ontario Breast screening guidelines
There are guidelines on having mammograms and other breast screening methods for various age groups. Please, click on your age group to find out more!

If you are under age 20
Become familiar with your breasts so that you can begin to learn what is normal for you. A mammogram is not needed unless your doctor asks you to have one.

If you are between 20 and 39
You should see a doctor or nurse for a yearly physical examination of your breasts. Learn and do BSE on a regular basis, for example once a month. A mammogram is not required unless recommended by your doctor.

If you are between 40 and 49
You should see a doctor or nurse for a yearly physical examination of your breasts. You should also learn and do BSE on a regular basis, for example once a month. Discuss having a mammogram with your doctor.

If you are between 50 and 74
You should see a doctor or nurse for a yearly physical examination of your breasts, learn and do BSE on a regular basis, for example once a month. You should go for a mammogram at least once every two years, or as often as your doctor says you should.

If you are over 75
You should see a doctor or nurse for a yearly physical examination of your breasts. Learn and do BSE on a regular basis, for example once a month. You should discuss having a mammogram with your doctor.

Remember:
Breast cancer is far more common in older women. The older you get, the higher your risk for developing a breast cancer.

There are many reasons to have a mammogram sooner or more often than the guidelines say. If there is a family history of breast or ovarian cancer, you should start having mammograms earlier. Make sure your doctor is aware of your family history. Family history doesn't mean you are going to get breast cancer, but your doctor may want to watch you more closely.

Any breast change can also be a reason to have a mammogram done, regardless of your age group.

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