Understanding Inherited Breast Cancer

Breast cancer is the most commonly diagnosed cancer in the United States. In 2018, 266,120 women and 2,550 men are expected to receive the news that they have the disease, according to National Cancer Institute data.

Inherited mutations in the BRCA1 and BRCA2 genes account for between 5 percent and 10 percent of breast cancers in U.S. women and between 5 percent and 20 percent of breast cancers in U.S. men. For women who undergo genetic testing and learn that they have inherited a BRCA1/2 mutation before they receive a breast cancer diagnosis there are ways to reduce their risk of going on to develop the disease.

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