Is breast cancer inherited?

Most women who get breast cancer do not have any family history of breast cancer. Just because a family member had breast cancer does not always mean that you will get breast cancer.

We do know that there are some genes associated with a known increased risk of breast cancer. These are BRCA 1 (breast cancer 1, early onset human tumor suppressor gene) and BRCA 2 (breast cancer type 2, susceptibility protein). Only 10 percent of women with breast cancer have these inherited genes. These women usually get breast cancer at a young age and have multiple family members with breast or ovarian cancer.

Credit:https://my.clevelandclinic.org/health/multimedia/questions