BreastScreen SA acknowledges the Traditional Custodians of Country throughout South Australia, and their continuing connection to land, waters and community. We pay our respect to all First Nations peoples, their cultures and to their Elders, past and present.

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Results
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Breast density is not a measure of how breasts feel; it is the amount of glandular tissue in breasts that appears on a mammogram.

Breasts are made up of 2 main types of tissue – fatty and fibroglandular tissue. Fat appears dark on a screening mammogram while glandular tissue appears ‘dense’ or white – as does breast cancer.

High breast density can increase the risk of breast cancer and can reduce the visibility of breast cancers on a screening mammogram.

From 8 August 2023, BreastScreen SA will measure and report individual breast density for our clients as part of our regular breast cancer screening program. Clients will be provided with their individual breast density category in their results letter.

Dense breasts

These pictures illustrate the breast density categories as measured using the Breast Imaging Reporting and Data System (ACR BI-RADS® Atlas 5th Edition).

Why is breast density important?

How is breast density measured?

What are clients told about their breast density?

Do all clients receive a breast density category?

If a client has high breast density, will they need additional tests?

What are the risk factors for breast cancer?

What further advice can I provide for reducing breast cancer risk?

Where can I get more information?