Urology Journal, as the official journal of Iranian Urological Association (IUA) and the Urology and Nephrology Research Center (UNRC), is a comprehensive digest of useful information on modern urology. Persian version of this journal had been published since 1984 and now, in order to be a part of the world literature, we have converted it to English version. Our objectives for the new version are to continue to provide a concise source of the most up-to-date and clinically relevant researches available, to reflect the scientific works of our colleagues in different universities, and to restructure the articles in a way that would better serve the diverse needs of our readers. Suggestions and comments about Urology Journal would be welcome.