• Calling all Changemakers!

    ​When you walk, run or donate to the Canadian Breast Cancer Foundation CIBC Run for the Cure, you help fund research that saves and improves the lives of women with breast cancer, as well as support services to help all those affected by the disease.


    Start or Support a Team Today!

  • Participate Your Way – Virtually!

    If we don’t have an official Run location in your community, no problem! Join “My Run. Any Where. Any way” and participate as an individual or as a team by doing an activity that suits YOU. Run, bike, host an activity in your home – it’s up to you!


    Join the Movement

  • Savour the Summer

    Plan a KitchenAid Cook for the Cure party! Invite your guests to make a donation in support of CBCF.


    Find out more!

  • Take a Swing at Breast Cancer

    Join us for Batting Against Breast Cancer™, our annual family-friendly slo-pitch tournament taking place in Calgary, Edmonton and Winnipeg.


    Learn More

  • Own Your Strong with CBCF!

    CBCF is partnering with Canadian Mudderella events in Toronto and Whistler. Register today for this 8-11km obstacle course and fundraise in support of the Foundation.


    Learn More

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Home | Central | About Breast Cancer | Steps to Diagnosis

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How is Breast Cancer Diagnosed?

A breast lumpLump:
A mass that can be found in the breast or elsewhere in the body. This can also be called a nodule.
or another sign or symptom of breast cancer may be found by a screeningScreening:
The search for diseases such as breast cancer in people without symptoms. Mammography is an important tool for breast cancer screening and earlier detection.
mammogramMammogram (also called mammography):
A low-dose X-ray of the breast. It is used to take images of the breasts and is an important screening tool for the earlier detection of breast cancer.
or during a clinical breast examinationClinical breast exam (CBE):
A physical examination of the breasts by a health-care provider.
by a health care provider. You may also notice a breast change yourself by being breast aware.

However, a change to the breast does not necessarily mean that you have breast cancer. In fact, most breast changes are not breast cancer. More information is needed to properly diagnose the signs or symptoms you are experiencing.

Diagnostic Imaging and Biopsy

The first step used for diagnosis will most likely be an imaging technique, which is a way to get a better picture of what is happening in the breast. You may also need to have a biopsyBiopsy:
A procedure in which tissue samples are removed from the body for examination under a microscope to determine if cancer or other abnormal cells are present.
, where a small tissue sample is taken to be tested in a lab to see if it is cancer.

It is important to diagnose the condition promptly. If it does turn out to be breast cancer, earlier detection can lead to more treatment options and a better chance of surviving the disease.

Explore this section to learn more about the different methods used to diagnose breast cancer, including the following: