Transverse vaginal septum is a vaginal plate that evolves during the embryonic period from the urogenital sinus, the vaginal bulb, to the cephalic end of the vagina, and is obstructed during the luminalization from the bottom to the top, resulting in an incomplete or incomplete luminalization of the vaginal septum. The transverse septum may occur in the higher part of the vagina and may be partially atretic, which may not affect sexual life and may allow conception, but may affect the delivery of the fetus during labor and delivery, so a transverse septotomy should be performed during delivery. 1. If the septum is asymptomatic or thin, the operation may be suspended. 2. In cases of low location, unsatisfactory sex life or infertility, an “X” shaped incision should be made around the small hole and the mucosa should be separated. 3, no hole after a clear diagnosis of timely surgery, to puncture the needle as the center, make an “X” shaped incision and trim.