After 42 days postpartum, women can go to the postpartum rehabilitation department for examination and have intercourse if their vagina and uterus have recovered well. During this period, women’s vagina and uterus have not fully recovered and their hormone levels have not returned to normal, so intercourse is particularly prone to pain, bleeding and other abnormalities, and patients are advised to have intercourse after 42 days without any abnormalities. Women who have had a cesarean section must pay attention to the intensity of intercourse 42 days after delivery so as not to cause the incision to collapse. After a woman’s cesarean delivery, the surface incision of the abdominal wall recovers relatively quickly, returning to normal in about two weeks. However, it takes 2-3 months for the deep tissues of the abdomen to recover completely, and before it is fully restored to normal, if the force of intercourse is too great, it can increase the pressure on the abdomen, which can easily lead to the collapse of the incision, which is more dangerous. In addition, postpartum intercourse must pay attention to good contraceptive measures to avoid pregnancy.