It is normal to have menstruation about 30-45 days after abortion. The speed of recovery after abortion is different for each person, depending on nutrition, rest, emotions and the degree of damage to the endometrium during abortion. The onset of menstruation is regulated by estrogen, progesterone, ovarian function, hypothalamus, pituitary gland, etc. If the endometrium loses hormonal support, exfoliation occurs and the onset of menstruation occurs. The hormone level changes after miscarriage and it takes at least a month or so for the endometrium to repair. During this period, you should pay attention to rest, not to stay up late, reasonably strengthen nutrition, eat more eggs, lean meat, fish and other high-protein food to supplement the consumption of the body in the abortion process. It is also necessary to relax and keep your mood relaxed, which is conducive to the stability of hormone levels and the timely onset of menstruation. If your period does not come for more than half a month, you need to review it in time and intervene if necessary.