A breast cancer gene test (BRCA gene test) is a type of genetic test that looks for changes in specific genes that may increase the risk of developing breast cancer. The most commonly tested genes are BRCA1 and BRCA2, which are known to be important in protecting against cancer. If changes are found in these genes, it can be a sign on a higher risk of breast cancer and sometimes ovarian cancer as well. This test can help individuals understand their risk and make appropriate decisions about preventive measures or treatments.

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