Approximately 30% to 50% of women that have the diagnosis of endometriosis also struggle with infertility. Twenty five percent to 50% of women diagnosed with infertility also have endometriosis, but the endometriosis may not be severe enough to be the primary etiology of infertility. White women have been reported to be more likely than African American women to have endometriosis. In addition, risk factors for endometriosis include below average body mass index, smoking, and alcohol use. Below is a discussion regarding the various ways in which endometriosis decreases fecundity and also discusses potential outcomes of fertility treatments regarding endometriosis.