Using the unbalanced randomization design with 1 patient randomized to white light/white light for every 3 patients randomized to white light/NBI , a two group t-test with a 0.050 two-sided significance level will have 90% power to detect the difference in pain change with a Group 1 (white light/white light) mean change of 1.9 and a Group 2 (white light/NBI) mean of 2.28, a difference in means of 0.38 with a common SD of 0.5, when the sample sizes in the two groups are 25 and 75, respectively (a total sample size of 100). We project that the majority of patients enrolled (over 70%) will be symptomatic with pelvic pain despite the indication for surgery (i.e. pelvic pain or infertility). Only 1 of the 2 study center sites has a significant population of women undergoing laparoscopy for evaluation and treatment of infertility.