Professor of Obstetrics and Gynaecology,Director International Islamic Center For Population Studies and Research, Al Azhar University (IICPSR),former Chairman of Obstetrics and Gynecology department and Former Dean, Faculty of Medicine, Al Azhar University. He authored and co-authored over 370 papers published in international, regional and national journals and 30 chapters in international books. He edited and co- edited 18 books. He is a reviewer and member of the international Editorial Board of several International journals in Obstetrics and gynecology Human Reproduction, Infertility, population science and Ethics. He has been an invited speaker and keynote speaker national, regional and international conferences organized by ESHRE, IFFS, ASRM, FIGO, IAB and other societies of Ob/Gyn around the world.