The location of genetic risk factors reported to influence endometriosis risk (7, 8, 9, 10, 11, 12, 13, 14) mapped to an ideogram of human chromosomes. The location of genetic markers showing genome-wide significant evidence of association with endometriosis is indicated by the orange bars on the ideogram. Genes close to the critical variant at each location are shown. Genes in red have evidence for functional relevance, genes in blue are novel regions identified in recent meta-analyses [9,11], and genes in black have been replicated in several studies.