CCS adapting to COVID-19 realities to support Canadians during and after the pandemic
Does wearing a bra increase my risk of breast cancer?
Wearing a bra might cause breast cancer.
There is no reliable scientific evidence that shows a link between wearing an underwire bra – or any other kind of bra – and developing breast cancer.
The Canadian Cancer Society is committed to sharing important information about cancer risk to Canadians and will continue to monitor research in this area.
Learn more about the risk factors for breast cancer.