The absence of menstrual period 35 days after abortion may be related to the individual’s physique, or it may be caused by factors such as uterine adhesion, endocrine disorders, and another pregnancy. 1. Individual constitution: abortion often causes damage to the uterine lining, which can lead to irregular menstruation next time. Some women recover faster and can have their menstruation in about one month after the operation. Some women recover faster and can have their period in about one month after the operation. Some women will have their period later due to the slower recovery of their body, but usually not more than three months. 2. Uterine adhesion: abortion may cause uterine adhesion, which prevents menstrual blood from being discharged, leading to prolonged absence of menstruation after abortion. 3. Endocrine disorders: if women have too much psychological pressure, do not have enough rest, often stay up late, etc., it may lead to endocrine disorders, which may lead to the disruption of the menstrual cycle and the absence of menstruation for a long period of time. 4. Re-pregnancy: If menstruation is delayed after abortion, you should also consider the possibility of re-pregnancy. If your period is delayed for a long time after the abortion, you should consult a doctor in time for relevant examination and treatment.