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[Birth and development of ureterorenoscopy].

In this paper we describe the history of the development of rigid ureterorenoscopy. It started in 1979 and today is a reality in most urological departments of the world. From the first ureterorenoscope with a extraordinarily large caliber and no dilation or operative systems, the current technique have developed, so that from hydraulic water pump to laser fragmentation have enabled to make ureterorenoscopy a common procedure for the resolution of urinary stones, extraction of foreign bodies in the ureter or kidney, treatment of stenosis, diagnosis of unilateral hematuria and endourological treatment of selected urothelial tumors.