Thirty days after the abortion and no menstruation may be a normal phenomenon, you need to check if you are pregnant again, if more than three months and still no menstruation may be caused by the uterine cavity adhesion, we recommend that you consult a doctor in a timely manner. The absence of menstruation thirty days after abortion is generally normal, due to the patient’s uterine lining has not fully recovered. Generally, menstruation will come in the next month after the abortion. If you have sex after the operation without effective contraception, it may lead to another pregnancy, and the patient will experience menopause, and this situation should also be noted. If the patient does not have menstruation for more than 3 months, it is caused by adhesions in the uterine cavity due to the surgery, and the patient will experience symptoms such as decreased menstruation, amenorrhea, and cyclic abdominal pain. Patients should avoid sexual life after the operation, ensure adequate rest, and should not stay up all night and be tired.