1. The normal sexual anatomy of an adult female. This diagram illustrates the sexual anatomy of an uncircumcised adult female. The hymen is absent (see below for illustrations of the hymen). |
2. Variability of hymen structure in virgins. Virginal hymens display a wide variety of forms. Illustrated here is a normal partial closure of the vaginal orifice (top right), a division of the orifice (top left) and a rare sieve hymen (below). |
3. The imperforate hymen. In rare cases, the hymen completely closes the vaginal orifice and remains un-ruptured throughout childhood. Commencing at menarche, menstural blood becomes trapped within the body as illustrated here. |
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