Normally, it is normal for a woman who had a normal delivery to have her period about two to three months after delivery, if there are no special circumstances. If the individual is weak, the onset of menstruation may be delayed. In the case of non-breastfeeding women, the onset of menstruation may be earlier. And breastfeeding women may not get their period until the end of the breastfeeding period. If a woman has heavy bleeding during childbirth, the onset of menstruation may be delayed because it takes time for the body to recover and for the blood to replenish. However, if you have not had your period for more than a year, you should consider whether there is any abnormality in the endocrine secretion after delivery, and you should go to the gynecological clinic for examination and treatment as soon as possible. In short, after a woman’s normal birth, whether or not to menstruate during the puerperium, for couples who do not intend to have a second child, try to reduce sexual life during this period, and do a good job of contraception.