It is necessary to take the embryo after fetal arrest for laboratory tests, which can clarify the cause of the arrest, and intervene or prevent it according to the cause, so as to avoid the same problem in another pregnancy. If the embryo stops developing, it is recommended to send the embryo after fetal arrest for a pathology test. The test is necessary to clarify the cause, such as the presence of infections such as rubella virus and herpes simplex virus, or the presence of hypothyroidism, genetic mutations, and other problems. Once the cause is clarified, relevant prevention and treatment can be carried out before getting pregnant again to prevent the recurrence of fetal arrest. Pregnant women after fetal arrest are advised to go to a regular hospital, consult a professional doctor, and cooperate with the doctor to complete the relevant examinations to avoid blind treatment.