If your daughter has a vertical or complete vaginal septum, she has a wall of tissue running down the length of the vaginal canal, partitioning the space into two vaginas.
Your daughter may realize she has duplicate vaginas when she inserts a tampon during her period and blood still leaks from her vagina. She may try two tampons and find that one vagina is too narrow to fit it in.
Some women have no symptoms of a vertical or complete vaginal septum. During sexual activity, the septum may tear and create one vagina. She may find that her partner's penis will always fall to one side or the other since one side of the vagina may be larger.
A vertical septum may not need to be removed unless it is causing issues, such as difficulty with tampons or pain during sexual activity. Women born with a vertical or complete vaginal septum also have duplications in the upper reproductive tract, meaning that she will have two cervices and two uteri.