Hugh S. Taylor, MD, is Professor of Obstetrics, Gynecology and Reproductive Sciences, and Director of Reproductive Endocrinology and Infertility at the Yale University School of Medicine. He describes recent advances in the knowledge of causes of endometriosis and the reasons it is so resistant to treatment.

References and Resources:
Sasson IE, Taylor HS. Stem cells and the pathogenesis of endometriosis. Ann N Y Acad Sci. 2008 Apr;1127:106-15.