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BRCA 1/2 gene mutations - A to Z

Woman with nurseThis page links to content about the BRCA1 and BRCA2 genes.

Inheriting a fault (mutation) in one of these genes greatly increases a woman’s risk of breast cancer. But they are rare in the population and only cause 2-5 per cent of all breast cancer cases. The BRCA genes are also linked to an increased risk of prostate and ovarian cancer.

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