Flexi Says: A thin ring of tissue, called the hymen,partially covers the vaginal opening. The hymen is not found in females of other species and serves no known physiological function. Because it often tears during a woman's first act of intercourse, it has long been considered a sign of virginity-of never having had sexual intercourse. But it is possible for the hymen to become torn some other way before the first act of intercourse, and sometimes intercourse leaves it intact.
