The BRCA1 variants in endometriosis (c.3232T > A) and PCOS (c.2566T > C) were identified within an OCCR of the gene and two BRCA2 variants in POI (c.7579delG, c.8524C > T) were identified to be within BCCR regions of the gene (77). Here, BRCA1 is linked to endometriosis.