• Chairman, Department of Obstetrics & Gynaecology at the University of Münster School of Medicine, Münster, Germany.

Professor Kiesel MD PhD studied at the Ruprecht Karl University of the Heidelberg School of Medicine, Germany, and the Royal Free Hospital Medical School at the University of London, UK. He earned a research fellowship at the National Institutes of Health in Bethesda, Maryland.

Professor Kiesel is the president of German Society of Gynaecological Endocrinology and Fertility Disorders, the past president of the German Endometriosis Research Foundation (SEF) and the German Menopause Society, and is a board member of the German Society of Obstetrics and Gynaecology and member of the Joint Societies orf Reproductive Medicine (DVR). Professor Kiesel has received awards for his research from the German Society of Research on Endometriosis, the German Society of Obstetrics and Gynaecology, the National Institutes of Health, the German Endocrine Society, and the Japanese Society of Pharmacology. The main aspect of his clinical work is endoscopic surgery of endometriosis especially of deep or recurrent disease. His research interests focuses on the role of stem cells and the mechanisms of cell proliferation and invasion in the pathogenesis of endometriosis and medical treatment of the disease.

He has performed a number of clinical trials in the fields of endometriosis, oncology, and endocrinology.

Professor Kiesel is a prolific contributor to a wide range of scholarly journals and has contributed to a number of book chapters. He has been a presenter at many international meetings and congresses. He is member of the editorial board of the Journal of Endometriosis and Pelvic Pain Disorders, Gynecological Endocrinology, Geburtshilfe und Frauenheilkunde, and Breast Care. He also serves as a referee for many international journals and research organisations including Fertility and Sterility, Human Reproduction, and the Journal of Endometriosis and Pelvic Pain Disorders. He is a member the Endometriosis Guideline Group of ESHRE.

Professor Kiesel joined the WES Board of Trustees in September 2011, where he served as the Society’s Treasurer. He has been a WES Ambassador since May 2017, when he stepped down from the board.