Professor Guo received his Ph.D. from the University of Washington in Seattle in 1991. He was Assistant and then Associate Research Scientist at University of Michigan, Associate Professor at University of Minnesota, and tenured full Professor at Medical College of Wisconsin. After serving a three-year term directorship at Shanghai Jiao Tong University, he has been a Professor at Shanghai OB/GYN Hospital, Fudan University since 2010. He is also an adjunct professor at Department of Obstetrics, Gynecology and Reproductive Biology at Michigan State University College of Human Medicine. He is an Associate Editor for Human Reproduction Update and a few other journals. He is a member of the Board of Trustees of the World Endometriosis Society (WES), the Society of Endometriosis and Uterine Disorders (SEUD), and the Asian Society of Endometriosis and Adenomyosis (ASEA). He is the co-founder of and the past President of ASEA (2017-2018). He has served as a consult to Bayer-Schering, Merck, Chugai Pharmaceutical, and BioHaven Pharmaceuticals.