Fetal arrest at around five weeks of early pregnancy, left untreated, may result in mechanization of the uterine tissues, causing adhesions in the uterine cavity, and may also lead to infection in the uterine cavity, even causing the risk of hemorrhage. After the embryo stops developing, it remains in the uterine cavity for a long time, and if it is not treated in time, it will lead to the adhesion of the mechanized tissue to the uterine wall, and after a long time, it may also lead to the development of infection in the uterine cavity, which may lead to the pain in the lower abdomen, and may even lead to the manifestation of fever. In addition, the lysozyme produced after the dissolution of the placenta will directly enter the maternal blood circulation, which will cause microvascular coagulation, consume a large number of factors, and may reduce the coagulation function, causing intravaginal hemorrhage. Therefore, in the clinical situation, if the embryo is stopped, it is necessary to consult a doctor in time to avoid delaying the condition.