The exact time of menstrual recovery after abortion varies individually due to differences in individual body type, hormone levels and recovery, but normal menstruation will basically resume in 4-6 weeks. Under normal circumstances, the corpus luteum begins to shrink after abortion and the ovaries enter a new growth cycle, with ovulation resuming in about 2-3 weeks under the stimulation of various hormones. The endometrium also begins to proliferate and detach cyclically, and about 2 weeks after ovulation, the endometrium is shed to form menstruation. Therefore, for women who have had regular menstrual cycles in the past, normal menstruation usually resumes about 4-6 weeks after the abortion. If menstruation does not resume after more than 6 weeks, you need to go to the obstetrics and gynecology department of the hospital for ultrasound and other related examinations in time to clarify the presence of gynecological diseases such as uterine adhesions and endometritis. If the patient experiences persistent abdominal pain with fever within two weeks after the abortion, or if the postoperative bleeding lasts for more than 10 days or the vaginal bleeding suddenly increases, the patient needs to go to the hospital immediately.