The word “LASER” is an acronym for “light amplification by stimulated emission of radiation.” Laser is one of the most important scientific discoveries of the last half of the twentieth century, often compared in importance with the discovery of electricity. Shortly after it was discovered, its applications in industry and especially in medicine increased continuously, contributing to many modern methods of diagnosis and treatment. The progress recorded over the last few years (the emergence of new types of lasers and optical fibers) has transformed laser into one of the ideal sources of energy used in medicine. The development of endoscopic instruments and the possibility of using laser fibers with very small diameters have significantly and positively influenced its use in urology, more than in any other medical specialty.
