The absence of a vagina is a congenital developmental problem, which can be clinically classified into two cases: first, the congenital development itself does not have a vagina, and vaginoplasty can be performed. Secondly, because hymenal atresia is visible to the naked eye, there is no vagina in appearance, but in reality there is a vagina, and as long as the hymenoplasty is done, there will be normal menstruation and normal sex life, and this patient can get pregnant and have children. It is recommended to do a detailed examination to find out if the internal genitalia are developing normally, such as an ultrasound to find out if there is a uterus in the pelvis, and then give the appropriate treatment, such as a hymenotomy.