Anteversion of the Uterus.
Anteflexion of the Uterus.
Retroversion of the Uterus.
Retroflexion of the Uterus.
The Hymen [hymen in Greek—a membrane]. The external opening of the vagina, in virgins, that is, in girls or women who have not had sexual intercourse, is almost entirely closed by a membrane called the hymen. The vulgar name for hymen is "maidenhead." The hymen may be of various shapes, and of different consistency. In some girls it is a very thin membrane, which tears very readily; in others it is quite tough. On the upper margin or in the center of the hymen there is an opening which permits any secretion from the vagina and the blood from the uterus to come through. In rare cases there is no opening in the hymen, that is, the vagina is entirely closed. Such a hymen is called imperforate (not perforated). When the girl begins to menstruate, the blood cannot come out and it accumulates in the vagina. In such cases the hymen must be opened or slit by a doctor. In some cases the hymen is congenitally absent; that is, the girl is born without any hymen. While the hymen is usually ruptured during the first intercourse, it, in some cases, being elastic and stretchable, persists untorn after sexual intercourse. It will therefore be seen that just as the presence of the hymen is no absolute proof of virginity, so is the absence of the hymen no absolute proof that the girl has had sexual relations, She might have been born without any hymen, or it might have been ruptured by vaginal examination, by a vaginal douche, by scratching to relieve itching, or by some accident.