Hymen
Hymen · Panenská blána
Reproductive system · female only
Looks like
A thin crescent rim of tissue around the vaginal opening, fuller at the back, with a wide gap in front.
What it does
A leftover of development; it has no job of its own.
Keeping it well
Nothing needs doing. Shapes vary and most are open from birth; it stretches with tampons, sport and intercourse, so its state cannot show whether someone has had sex.