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Ask the doctors
Q. My sister and I are in our late 40s, and she was just diagnosed with breast cancer. Should I get genetic testing to find out if I’m at higher risk?
A. Your worry is understandable. Only 5% to 10% of breast cancers result from an inherited genetic mutation, according to the American Cancer Society. But when mutations are present — most commonly in the BRCA1 and BRCA2 genes — a woman’s risk for breast cancer can increase by as much as 80%.
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