FSHB and endometriosis: Moreover, according to the study of Garitazelaia and co-authors, SNPs (rs11031005 and rs11031006) of the region near to FSHB (25–40 Kb upstream) in chromosome 11 showed significant pleiotropic associations mediating endometriosis and correlated traits (age at menopause and age at menarche, and length of menstrual cycle) [18].