Fetal arrest generally refers to the cessation of embryonic development, and the vast majority of women experience vaginal bleeding only after the embryo has stopped developing for one or two weeks. However, this time does not represent all women, and is related to individual conditions, there is no uniform time limit, clinical needs to be based on the actual condition. After the embryo stops developing, the estrogen and progesterone in the body will drop, and the smooth muscle of the uterus will contract, so there will be a peeling off between the gestational sac and the uterine wall, resulting in vaginal bleeding. However, some women never have vaginal bleeding after the abruption, while others start to bleed even before the embryo stops developing. Bleeding in embryonic arrest is not particularly heavy, but rather a brownish discharge will be seen passing through the vagina and will be accompanied by symptoms of pain in the lower abdomen. Women who have had an embryonic arrest will have to undergo a removal procedure in time to avoid intrauterine residue. If the embryo has been in utero for two weeks by the time of discovery, it is called an induced abortion, in which case it is recommended that hospitalization to terminate the pregnancy is safer, as there is a possibility of coagulation disorders that could lead to post-abortion hemorrhage.