How long after the abortion will cause the related reaction will depend on the individual. Individuals vary and will not manifest exactly the same. Some patients may have no symptoms, some may show manifestation in a few days or 1-2 weeks, or even signs may appear before the abortion. 1. no symptoms: some pregnant women will not have any symptoms or discomfort after the abortion, and the fetus is found to have stopped developing only during routine examination. 2. with symptoms: some pregnant women will have a small amount of vaginal bleeding before the embryo stops developing, and subsequent examination Embryonic arrest is found; for pregnant women with obvious pregnancy reaction, the early pregnancy reaction can usually be weakened or even disappeared a few days after fetal arrest; some pregnant women will show symptoms of vaginal bleeding and lower abdominal cramps within 1-2 weeks after the embryo stops developing. During pregnancy, pregnant women should pay attention to rest, not to overexert themselves, and ensure sufficient sleep and regular maternity checkups. If there is a small amount of vaginal bleeding, lower abdominal pain, or abnormalities such as sudden disappearance of pregnancy response, you should go to the hospital for ultrasound examination to determine whether the embryo is developing normally. Terminate the pregnancy when fetal abortion is detected to avoid uterine infection.