What is a septate hymen?
The hymen is a thin membrane-like sheath that covers the opening of the vagina. Babies have a thick hymen because of how the vaginal canal develops in utero. Over time, the hymen will become thinner and eventually break, possibly from exercise, inserting a tampon, or through sexual intercourse.
Hymens come in all shapes and sizes. Typically, the hymen is a small doughnut-shaped ring of tissue that encircles the opening of the vagina. It may also look like a crescent or half-moon shape toward the bottom end of the vaginal opening.
A septate hymen is when the hymen encircles the vaginal opening and has an additional string of tissue that connects the top and bottom ends of the vagina. A septate hymen makes it look like there are two vaginal openings, but there is only one that is partially obstructed down the middle.