Nine cases of female urethral diverticuli were successfully operated in the years between 1978 and 1980. The anatomic pathophysiology of female urethral diverticuli is discussed according to the currently accepted international and Hungarian terminology. A new modified surgical method is described and the possibilities opened by its adequate application are outlined. No postoperative urethrovaginal fistula has ever been observed. It is emphasized that the new surgical method can only be applied to large diverticuli with a narrow neck. In the interest of the patient co-operation between the urologist and gynaecologist is indispensable.