Fetal arrest, the common name for induced abortion, may be manifested by vaginal bleeding, abdominal pain, disappearance of early pregnancy reaction, cessation of fetal movement, disappearance of fetal heartbeat, and a few may have no self-awareness of symptoms. 1. Vaginal bleeding: the hormone level in the body decreases after an induced abortion, for example, the HCG value decreases and the progesterone value decreases, which leads to the peeling off of the gestational sac and meconium tissue from the uterine wall, and the opening of the blood sinus, which will lead to the manifestation of vaginal bleeding. 2. Abdominal pain: there will be blood and pregnancy tissue discharged from the uterine cavity after induced abortion, which will stimulate the uterus to contract and there may be the symptom of lower abdominal pain. 3. Early pregnancy reaction disappeared: after pregnancy by the body of the hormone levels rise, there will be nausea, vomiting, breast swelling and pain, loss of appetite and other symptoms of early pregnancy reaction, after abortion of the body of the hormone levels decline, these early pregnancy reaction will gradually disappear. 4. Fetal movement stops: Fetal movement occurs in the 16th to 20th week of pregnancy, and the fetus stops moving in the uterus after the abortion, and the pregnant woman can no longer feel the fetal movement. 5. Fetal heartbeat disappears: the primitive cardiovascular pulsation appears in 6~8 weeks of pregnancy, and the fetal heartbeat disappears after the fetus stops developing in the uterus, and you can’t hear the fetal heart rate through the fetal heart rate monitor. Whether the pregnancy is an abortion or not should be determined by the hospital through the examination, after diagnosis and timely treatment.