The recovery of menstruation after abortion is mainly affected by the hormone level in the body, ovarian ovulation function and the recovery of the uterine lining, and usually resumes in 4-6 weeks. During pregnancy, the ovulation function of the ovary is suppressed, which temporarily stops ovulation. When the pregnancy is terminated, the ovulation function of the ovaries begins to recover gradually under the action of estrogen and other hormones, and ovulation begins in about 2-3 weeks. In addition menstruation occurs due to the presence of cyclic thickening and shedding of the uterine lining, which needs to restart its cycle after abortion due to the relative thinning of the uterine lining. When the ovaries ovulate about 2 weeks later, the thickened endometrium will shed and menstruation will occur. Therefore, under normal circumstances, menstruation will resume about 4-6 weeks after the abortion. If menstruation has not resumed 6 weeks after abortion, it is necessary to go to the obstetrics and gynecology department of the hospital for ultrasonography and other relevant examinations in order to clarify the cause of the disease and carry out timely treatment. In addition, after abortion, you need to pay attention to rest, avoid heavy physical labor, consume more nutritious food, and prohibit sexual intercourse for one month to prevent retrograde infection or the possibility of getting pregnant again.