Osamu Yokoyama is a Professor & Chairman, Department of Urology, University of Fukui and Director of the Kidney Center in the University Hospital of Fukui, Fukui, Japan. He undertook his medical training at the Kanazawa University Hospital and was awarded the degree of PhD in Neurourology for a thesis entitled "Nerve degeneration in ischemic dog urinary bladders". He worked as a Visiting Assistant professor at Department of Pharmacology, School of Medicine, Pittsburgh University under the direction of Professor William C. de Groat from 1996 to 1997. He is active in basic and clinical researches with many major grants-in-Aid for Scientific Research funding from Japanese Government and has published over 130 research papers and reviews including 30 original articles published in Journal of Urology. He is now a President of the Japanese Continence Society and a Steering Committee Member of Pan-Pacific Continence Society