Regular vacation is menstruation, how long it takes to get menstruation after a normal delivery varies from person to person, with early recovery for those who are not breastfeeding and late recovery for those who are breastfeeding. Most women need to breastfeed their babies continuously due to the need for breastfeeding, the prolactin level in the body is usually maintained at a high level, which can reflexively inhibit the ovarian function, and the ovarian function recovers slowly, it usually takes 4 to 6 months after delivery to resume normal ovulation, if breastfeeding is continuous, the return of menstruation is usually after breastfeeding is discontinued, and individual women may be even later. In women who do not need to breastfeed, menstruation usually resumes 6 to 10 weeks after delivery. The exact timing of the return of menstruation varies due to individual differences in the patient’s condition. Since ovulation usually occurs before the onset of menstruation, which cannot be predicted, women who have intercourse before their periods return after delivery should take active contraceptive precautions to prevent unwanted pregnancies, which may lead to undesirable consequences.