Fetal arrest generally refers to the cessation of fetal development. Fetal arrest does not usually occur at 39 weeks of pregnancy, but it may occur due to intrauterine hypoxia, genetic abnormality, or the mother suffers from gestational hypertension, etc. Fetal death may also occur. Fetal arrest at 39 weeks of gestation is usually not a problem, but it can occur. Fetal arrest is usually caused by intrauterine oxygen deprivation due to the umbilical cord around the neck, but it can also be caused by genetic abnormalities that lead to the cessation of development, and it can also be caused by the mother’s pregnancy with gestational hypertension syndrome due to insufficient arterial supply of blood leading to intrauterine fetal death. It is recommended that pregnant women relax and avoid excessive anxiety when approaching the due date, pay attention to observing their own physical condition, and consult a doctor in a timely manner once an abnormal situation occurs, and improve the relevant examinations and standardized treatment.