Pregnant mothers who are expecting a baby are concerned about one thing: fetal malposition. In the case of fetal malposition, it can greatly increase the difficulty of a normal delivery and, if necessary, increase the chances of a cesarean section. In particularly serious cases, it can also threaten the life of the mother and child. What is fetal malposition? Fetal position is the position of the fetus in the mother’s uterus, and fetal malposition is a common cause of obstructed labor. Usually, in medicine, the occipital anterior position is called normal fetal position, at this time, the fetal head occipital part of the lowest, the fetus is easy to pass the smallest diameter line, this fetal position delivery is generally more smooth. The causes of fetal malposition are mainly related to: the shape of the pelvis, the size of the fetus, the amount of amniotic fluid, abdominal muscle laxity in PMS women, the umbilical cord is too short, the presence of uterine fibroids or uterine congenital developmental anomalies and other factors. Abnormal fetal position may lead to serious complications such as weak uterine locking, prolonged labor, even uterine rupture, neonatal birth injury, neonatal asphyxia or even stillbirth. Fetal malposition is related to the number of weeks of pregnancy of the pregnant mother. Generally speaking, for fetal malposition before 30 weeks of pregnancy, because the fetus is small, amniotic fluid is large, and the fetus has a large range of motion, only observation is needed. However, after 32 weeks of pregnancy, the position of the fetus is basically fixed, and it is recommended to correct it between 30-34 weeks of pregnancy. The most common method of correcting fetal malposition is to perform chest and knee position correction. If there is still no turn in this period, external inversion of fetal position can be considered for the mother-to-be, but external inversion must have moderate amniotic fluid volume, moderate fetal and maternal weight, and the fetus is not in the pelvis, and there is a risk of umbilical cord entanglement or placenta previa during the operation of the external inversion. If the position of the fetus is not adjusted before delivery, cesarean section is required in most cases to terminate the pregnancy to avoid causing injury to the mother and baby.