Mid-pregnancy fetal arrest, there may be fetal movement disappeared, abdominal enlargement stopped, or even shrink, as well as abdominal pain and vaginal bleeding and other manifestations. 1. Fetal movement disappears: 20 weeks of pregnancy can feel fetal movement, which is a sign of fetal survival, 20 weeks after the occurrence of fetal arrest, fetal movement can disappear, fetal movement disappeared for more than 12 hours in a row the possibility of fetal arrest is greater. 2. Abdominal enlargement stops, or even shrinks: if the fetus dies in the uterus for a long time without being discharged in a timely manner, the pregnant woman may feel that her abdomen does not continue to grow. The amount of amniotic fluid will also be reduced after the fetal arrest, the fetus in the uterus water loss, some people’s abdomen can also shrink. 3. Abdominal pain: after the occurrence of fetal termination, the fetus can stimulate the uterus to contract, thus prompting its expulsion, uterine contraction will cause abdominal pain. 4. Vaginal bleeding: Vaginal bleeding can occur before and during the expulsion of the fetus. In addition, not all of the above symptoms can occur, there may be only one or two of them, and a few people may not have any discomfort. Therefore, regular checkups are needed during pregnancy to detect the high risk factors of fetal abruption in time and intervene in advance to prevent its occurrence.