Quitting breastfeeding usually refers to weaning, women usually have menstruation 1~3 months after weaning from breastfeeding, due to the different conditions of their own organism, the time of menstruation will also vary, it is recommended to judge according to their own actual situation. Women usually get their period 1~3 months after weaning, because when breastfeeding, the prolactin in the body is always at a high level, which may cause the body not to secrete estrogen and progesterone periodically, and menstruation will not come. After weaning, the level of prolactin gradually decreases, causing the ovaries to resume ovulation and undergo cyclic changes, which results in the resumption of menstruation. The timing of the return of menstruation is related to factors such as the speed of recovery of ovarian function after delivery, and there are some individual differences. Women are advised to pay close attention to their own changes after weaning during the breastfeeding period and dynamically observe their physical conditions. When problems are detected, it is recommended that they consult a doctor in time to clarify the cause of the problem and to carry out targeted treatment or therapy with the doctor’s help.