Hi, my girlfriend is virgin and I have analized her hymen in detail but I'm intrigged, it seems like a completely imperforate hymen, it has not even the tiniest hole or opening whatsoever, I even looked at the corners around it but nothing, it seems to completely block but I have read imperforate hymens dont let vaginal nor menstrual fluids come out but she has no trouble with either. Am I missing something? Also, it is mostly a very pale tissue near to white but uneven in tone all across but it has like a small bulge of a thicker, a bit darker (the same tone that the rest of the vagina), tissue, like from the center to one of the sides, I'd say about 20% of the hymen's appearent body. She says she sometimes has delayed periods and sometimes worries she would have any disease. When I told her about the bulge she didnt seem to mind at all but I'm curious. All info is appreciated, thanks.