Therefore, considering that the precise intensity of the autoantibodies detected incases of endometriosis has not been well studied or adequately described, thepresent study was designed to evaluate the mean intensity of five differentantibodies against the extractable nuclear antigen (ENA: RNP, ScL-70, SS-B, SS-A,and Sm) in infertile patients with endometriosis. This evidence concerns the gene SSB and endometriosis.