In full-term vaginal delivery, if there is no lateral episiotomy, sometimes there is a tear in the perineum, and after the tear there is bleeding, the midwife or doctor will stitch it up during the delivery. If the perineal wound is not closed properly, for example, if there is a misalignment, a local skin depression or a bump, or if the skin is not aligned well with each other, there is no need to reopen and close the wound. Because the sutures in this part of the perineum, if the sutures are not really good, the main function is to slowly recover and grow well, not like the face requires perfection, must be perfect, not like this, so the perineal wound is not well sewn after the laceration, after healing does not need to be sewn again. First of all, the requirements are not as strict as the face, this is one point. Another point is that after the perineal wound has healed, as long as the function is good, it can be, if the incision is closed again, is not recommended, because there is no need.