The medical term for menstruation is menstruation. It is normal for most breastfeeding women to menstruate about 6 months after giving birth, or to menstruate after being weaned from the breastfeeding, but there are individual variations in the exact time of menstruation. During breastfeeding, the level of prolactin in the body is high, which affects the secretion of estrogen and progesterone in the body and inhibits ovulation of follicles, thus affecting the resumption of menstruation. Due to the different physique, the recovery time of hormone level is not the same, with the decrease of prolactin secretion in the body, estrogen and progesterone secretion increases, menstruation will gradually come. Some women get their period around 3 months after delivery, while most breastfeeding women get their period around 6 months after delivery, and a small number of them do not get their period throughout the whole breastfeeding period until after weaning, which is a normal physiological phenomenon. Generally speaking, it is normal for breastfeeding women to have menstruation at any time, which is mainly related to the individual’s physical condition. In addition, during the period of breastfeeding without resuming menstruation, it is necessary to take reasonable contraceptive measures, because ovulation has resumed before the onset of menstruation, and if no contraceptive measures are taken, it may lead to unwanted pregnancy.