For instance, the mean methylation rate of HOXA10 in the eutopic endometrium from women with endometriosis varied between 4 and 70% depending on the gene regions analyzed; F1-3 regions of the HOXA10 promoter, as well as the 5′untranslated region (5′UTR) [37,38,39,40,41,42]. This evidence concerns the gene HOXA10 and endometriosis.