Abstract: The Nd:YAG laser treatment of a 32-year-old man affected by azoospermia is presented. Preoperative evaluations showed fructose absence in the ejaculate and transrectal echothomography showed bilateral seminal vesicles dilatation. Before the surgical procedure a transperineal vesicledeferentography echographycally guided was carried out. The exam showed the absence of ejaculatory duct and the presence of cystic dilatation in which both seminal vesicles joined. During the exam a mixture of contrast medium and methylen blue was injected into the seminal vesicles. Later, transurethrally and by means of a sapphire contact tip, a new channel, over the veru montanum, was created by a Nd:YAG laser irradiation (25 Watts/2 seconds). The irradiation was carried out until an efflow of seminal material mixed with blue came out through the new channel. Ten months later the patient has 32.10$+6$//ml spermatozoa with good quality of semen analysis.!
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