Tags: Anatomical Structure.
The hymen is a membrane that surrounds or partially covers the external vaginal opening. It forms part of the vulva or external genitalia and is similar in structure to the vagina. In children although a common appearance of the hymen is crescent-shaped many shapes are possible.The effects of sexual intercourse and childbirth on the hymen are variable. If the hymen is sufficiently elastic it may return to nearly its original condition.
