Obstructive azoospermia is a common cause of sterility in men. In the past infection played an important role in the aetiology of obstructive azoospermia. Recently, however, the aetiology of obstructive azoospermia appears to be changing. So iatrogenic obstructive azoospermia has reached an important role in the field of obstructive azoospermia. In this work we show international literature about iatrogenic obstructive azoospermia. Unfortunately it is poor, in spite of an interesting item. We divided iatrogenic obstructive azoospermia into six groups, considering the possible anatomical site of obstruction. So we show the possible damages at the different levels: testis, epididymis, vas deferens, seminal vesicles, prostate and ejaculatory ducts.