Assertion: amenorrhea's cause | /r/HasProperty | imperforate hymen
Facets:
Source sentences:
text: A bulging vagina and a pelvic mass are typically felt during abdominal and rectal examinations (which can also detect other pelvic pathology, such as tumors), but determining whether the cause is vaginal agenesis, a vaginal septum, or an imperforate hymen may be difficult.