It is recommended that women who have terminated their pregnancies, whether by normal delivery or by cesarean section, should not have sex until 42 days or more after the birth of the child, when there are no abnormalities in the routine postpartum review. It takes about six weeks for the uterus to recover from contractions, and there will be significant discharge of malignant fluid after delivery, and women who deliver by normal labor may have stitches in the vaginal wall and perineum. If intercourse is arranged too early and long, it may cause localized pain in the vagina and may even lead to pelvic inflammatory disease caused by bacterial upstream infection. After delivery, you should have a routine follow-up ultrasound and a routine white belt and blood test, and you can have intercourse occasionally when there is no abnormality and your milk is completely clean.