The progressive and orderly development of the endometrium is well established and disruption in the process by BPA may contribute to the development of gynecologic disorders involving increased angiogenesis and VEGF gene expression in conditions such as endometriosis (Oosterlynck et al. 1993, McLaren et al. 1996), abnormal decidualization or implantation failure. This evidence concerns the gene VEGFA and endometriosis.