Conservative surgery for severe endometriosis in infertile women is one of the most challenging situations for the pelvic surgeon. The second half of the 1980s saw an increase in the supporters of laparoscopic treatment even for more extensive disease. Two opposing factions were thus created: traditional gynecologic surgeons who accuse endoscopists of imprudence and technical inadequacy and enthusiastic supporters of operative laparoscopy who consider laparotomy obsolete and its associated morbidity needlessly high for the patient and health service. In the present review of the literature data we analyze laparotomy and laparoscopy techniques and compare the postoperative results in terms of reproductive success in an attempt to clarify whether conservative endoscopic treatment of severe endometriosis is only an inappropriate proposal with no future or whether, due to its efficacy, it will eventually limit interventions via laparotomy to exceptional circumstances.