WHICH GENES AFFECT A PERSON’S RISK OF BREAST AND OVARIAN CANCER?
There are probably several genes that affect a person’s risk of breast or ovarian cancer. The two genes typically associated with both breast and ovarian cancer risk are called BRCA1 and BRCA2, but experts are learning about other genes that increase the risk of breast cancer (with or without an increase in ovarian cancer risk).
Genes are passed down in families, so women who have family members with breast or ovarian cancer sometimes have genetic tests to find out if they carry abnormal versions of genes. By having these tests, women can find out whether they need to take special steps to protect themselves from cancer.