The main findings on exploratory laparoscopy performed for these complaints are endometriosis and adhesions, while in more than 50% of cases, no cause for the pain is found. In 1955, Allen and Masters reported pain associated with traumatic labor. [ncbi.nlm.nih.gov]

Allen fetal stethoscope Allen-Masters syndrome - pelvic pain resulting from old lacerations of the broad ligament during delivery. [medical-dictionary.thefreedictionary.com]

Further, it is suggested that when such defects are noted at laparoscopy, the presence of other associated pathologic abnormalities, including endometriosis, should be investigated. [ncbi.nlm.nih.gov]

Allen fetal stethoscope Allen-Masters syndrome - pelvic pain resulting from old lacerations of the broad ligament during delivery. [medical-dictionary.thefreedictionary.com]

Twenty-five cases of pelvic peritoneal defects were documented in a series of 635 consecutive diagnostic laparoscopies done primarily for pelvic pain. None fit the criteria of the Allen-Masters syndrome. [ncbi.nlm.nih.gov]