Multiple studies have identified an association between RAD51C pathogenic variants and OC, or families with BC and OC in different populations (Blanco et al., 2014; Clague et al., 2011; Eoh et al., 2018; Jonson et al., 2016; Loveday et al., 2012; Lu et al., 2018; Meindl et al., 2010; Neidhardt et al., 2017; Osorio et al., 2012; Pang et al., 2011; Pelttari et al., 2011, 2018; Romero et al., 2011; Sanchez‐Bermudez et al., 2018; Schnurbein et al., 2013; Song et al., 2015; Sung et al., 2017; Thompson et al., 2012; Vuorela et al., 2011). Here, RAD51C is linked to breast cancer.