Identifying female carriers of BRCA1 and BRCA2 mutations is imperative for prevention of ovarian cancer and breast cancer. There are five major histologic subtypes of ovarian cancer and high grade serous cancer (the most common) is reported in 75–100% of BRCA1 and BRCA2 mutation carriers. | A population-based analysis of germline BRCA1 and BRCA2 testing among ovarian cancer patients in an era of histotypespecific approaches to ovarian cancer prevention