Oxytocic injections generally have the effect of promoting contractions, cervical maturation and facilitating labor. The oxytocic injection can be given at 40 weeks of pregnancy, but it needs to be diagnosed by hospitalization with or without indications for labor induction. The choice of whether or not to have a normal delivery after the oxytocic injection is based on the condition of the pregnant woman and the fetus. When there are no special requirements and indications for labor induction or delivery at 40 weeks of pregnancy, it is recommended to do ultrasound to observe the condition of the fetus and to detect fetal heartbeat and fetal movement, and wait for the arrival of natural labor for normal delivery. If the pregnant woman has high blood pressure during pregnancy, gestational diabetes, too much or too little amniotic fluid and other diseases at 40 weeks of pregnancy, she can also be induced by using an oxytocic injection after the doctor’s assessment, so as to avoid factors such as aging of the placenta and umbilical cord from affecting the fetal oxygen supply and causing intrauterine hypoxia, which may lead to fetal life risk. At 40 weeks of pregnancy, the fetus is basically fully developed, and if there is no indication of labor when the pregnancy is 1-2 weeks beyond the expected date of delivery, the labor can be induced by oxytocic injection. However, if there are abnormalities such as pelvic stenosis, cephalopelvic disproportion, or abnormal fetal position such as transverse fetal position, placenta praevia, umbilical cord prolapse, etc., during the delivery, it may not be possible to have a normal delivery and a cesarean section is needed. The effect of oxytocin in inducing labor in late pregnancy is basically no different from that in normal delivery, and there is no adverse effect on the fetus, so pregnant women do not need to be overly nervous. However, when oxytocin is used, a person must be assigned to watch the pregnant woman and closely observe the changes of contractions.