Women should pay attention to the time when they have sex after giving birth, and must have sex after 42 days after giving birth. Because the reproductive organs have not fully recovered within 42 days after delivery, having sex too soon may affect the recovery of the uterus and cervix, and may also cause infections. When having sex, both men and women should wash their genitals with warm water, so that bacteria will not enter the vagina with the penis, leading to infections in the vagina, cervix and even the uterine cavity. If a woman has vaginal bleeding after intercourse, she should go to the hospital to have an ultrasound and vaginal examination in time. It is possible that the cervix and the uterus have not fully recovered, and in this case, she should avoid having sex again, and she should have sex only after she has fully recovered. In this case, you should avoid having sex again, and should only have sex after you have fully recovered. You should also pay attention to taking effective contraceptive measures to prevent unwanted pregnancies.