After abortion, if a woman’s body recovers well, her menstrual flow can resume in about 25-35 days, usually no later than 45 days. Induced abortion is a common method for women to terminate pregnancy in early pregnancy, commonly used methods include curettage and negative pressure suction, both of which are harmful to the endometrium of the uterus, but usually the endometrium can gradually recover and menstruation can occur about 1 month after the procedure. If there is still no menstruation for more than 45 days, or if the menstruation is irregular for more than 3 months, it is recommended that the patient should go to the gynecology department of a regular hospital for examination to exclude organic lesions of the uterus. Even if there is no menstruation after abortion, you should pay attention to contraception, because ovulation will resume around 22 days after the operation, and if you have intercourse at this time, there is a risk of pregnancy again, which is more harmful to women’s body.