The recovery of menstruation after childbirth varies from person to person, depending on the circumstances of each individual. After 42 days after delivery, the female reproductive system, such as the uterus and cervix, will return to normal. If you are not breastfeeding at this time, the ovaries will resume ovulation in about one month to one and a half months after delivery, so menstruation will resume in 6-8 weeks after delivery. In the case of breastfeeding, the ovaries are slow to resume ovulation, so it takes longer for menstruation to resume. Therefore, breastfeeding women will resume menstruation on average 4-6 months after giving birth, but due to the fact that everyone’s physique is different. However, due to the different physique of each person, it is normal for some people to take a year for their periods to return.