A number of studies have investigated association between reproductive and anthropomorphic traits and cancer risk in BRCA1 and BRCA2 PV carriers [10, 31–33], but apart from studies of ANM and a small study of AAM comprising only 31 BRCA1 and 11 BRCA2 PV carriers [34], to our knowledge there are no epidemiological studies evaluating the distribution of these traits in comparable carrier and non-carrier populations. The gene discussed is BRCA1; the disease is cancer.