The 42-day postpartum checkup is mainly to bring the discharge medical record. The discharge medical record will record in detail the delivery situation, the amount of bleeding, the situation at the time of discharge, etc. If there is a wound, the discharge medical record will also describe in detail the total number of stitches and stitches to be removed. In addition, a gynecological examination is required at the 42-day review to understand the recovery of the vulva, vagina and cervix, the recovery of the uterus, to exclude the possibility of inflammation, to do routine tests of the white belt, to do a gynecological double examination, and to do an ultrasound examination. In the clinical situation, if there is no problem after the examination, it is recommended to keep the vulva clean and not to have intercourse after returning. Under normal circumstances, the physiological recovery period is 56 days if it is a normal birth, so it takes 2 months to have intercourse after delivery, and 3 months if it is a cesarean birth, so you can have intercourse only after 3 months.