The most comprehensive study on the risk of repeat surgery for endometriosis was only recently published, suggesting a risk of up to 28% during the first 10 years after complete excision of endometriosis. What is also interesting is that performing a hysterectomy at the time of first surgery, as well as achieving a post-operative pregnancy, were found to be independent, protective factors against repeat surgery. The mean time between primary and repeat surgery in this study was 46 months (1).