The lack of bleeding after fetal arrest may be due to the short duration of fetal arrest, or it may be related to the uterus, such as uterine curvature is too large, the cervical opening is too tight, and the gestational tissues are adherent to the uterine cavity, and so on. 1. Short duration of fetal arrest: Generally, if it is in the early stage of fetal arrest, it may not cause the body’s reaction, and at this time, it may not bleed after fetal arrest; however, as the duration of fetal arrest grows longer, the body will have an immune rejection reaction against the embryo, and at the same time, the uterus will contract, which will result in symptoms such as abdominal pain, vaginal bleeding, and so on. 2. Uterus-related: When the abortion occurs, if the curvature of the uterus is too large, the cervical opening is too tight, and the pregnancy tissue is adherent to the uterine cavity, it may lead to the embryonic tissue not easy to be discharged, and if it remains in the uterus for a long period of time, it may easily lead to bleeding, infection, and even affect the blood clotting function. Even if there is no bleeding after fetal arrest, the pregnancy should be actively terminated under the guidance of the doctor.