The proposed study design is a multisite randomized controlled device trial conducted in two clinical centers. Women will be randomized to have laparoscopic examination with white light followed by NBI (white light/NBI) examination or white light followed by repeat white light examination (white light/white light). Women of reproductive age (<50 years of age) undergoing diagnostic laparoscopy for pelvic pain, suspected endometriosis, or infertility will be eligible. A systematic examination covering the four quadrants of the pelvis will be conducted using white light followed by either NBI or white light to identify and document endometriotic lesions.