Changes in breast cancer (BRCA) genes cause most cases of HBOC syndrome.
Some groups of people have a higher risk for a BRCA gene mutation.
If you have a BRCA gene mutation, you can take steps to prevent cancer.
A direct-to-consumer genetic test may not give you a full understanding of your cancer risk.
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Tell your family members if you have a breast cancer gene mutation.
Personal stories from people with hereditary breast cancer.
Genetic test results may help you manage your risk for breast, ovarian, and other cancers.