The female vulva is composed of labia majora, labia minora, clitoris, urethral orifice and vaginal orifice. You can go to a hospital for examination by a professional doctor. According to your situation, if it is an extra part, you need to check it clearly. It may also be that the labia minora has grown longer, because there are individual differences. In fact, everyone's genitals are different, so don't worry too much.