Postpartum women, especially those who give birth naturally, are prone to vaginal relaxation after delivery, which not only affects their sexual life, but also may lead to urinary incontinence. Surgery can reduce the loose vagina to a suitable width, promote the contraction of vaginal muscles, and make it firm. This is mainly to improve the vaginal relaxation caused by postpartum, improve the quality of sexual life and make the relationship between husband and wife more harmonious.