Menstruation typically resumes a few months after childbirth.

The time it takes for menstruation to resume after childbirth varies from person to person, and is related to factors such as breastfeeding, individual physical condition, and nutritional status. Generally speaking, women who do not breastfeed may experience the return of menstruation within 6–10 weeks postpartum, while women who breastfeed may resume menstruation around 4–6 months postpartum or even later. However, these are only approximate reference ranges, and the actual time of resumption may occur earlier or later.

From a physiological perspective, postpartum menstrual recovery is closely related to endometrial repair, ovarian function recovery, and hormonal balance. The endometrium needs time to heal after delivery, and ovarian recovery affects the secretion of estrogen and progesterone, thereby influencing the restoration of the menstrual cycle. Additionally, breastfeeding promotes the secretion of prolactin, which indirectly inhibits the release of gonadotropins, thus delaying the return of menstruation.

Therefore, for postpartum mothers, maintaining healthy lifestyle habits, eating a balanced diet, and engaging in appropriate physical activity can help promote overall recovery and shorten the time required for menstruation to resume.