What is the best time to determine the fetal position?

For pregnant mothers, the position of the fetus is very important. In the early stages of a new mother's pregnancy, the baby is still small and always moves around in the mother's belly. In this case, the fetal position is difficult to fix, and it is easy to cause the fetus to be in a transverse position. The correct or incorrect fetal position is closely related to whether the pregnant mother chooses a natural birth or a cesarean section. Generally speaking, the fetal position of a pregnant woman may change at any time before 28 weeks of pregnancy, and it will generally be basically determined after 28 weeks.

1. What is the best time to determine the fetal position?

1. Generally, the tires will start to be fixed in the last month of June or the middle of July. Therefore, you should do a pregnancy check-up in July to see if the fetal position is normal. If the fetal position is not normal at that time, you can start to correct it at that time. The posture of the fetus in the womb before birth is very important, which is related to whether the pregnant woman chooses a normal birth or a difficult birth. We know that the fetus in the uterus is immersed in the amniotic fluid of the pregnant woman. Because the head of the fetus is heavier than the body, the fetus is mostly in the position of head down and buttocks up.

2. The normal fetal position should be that the fetal head is flexed with the occipital bone in front. During delivery, the head is the first to extend into the pelvis, which is medically called "head presentation". Delivery in this fetal position is generally smooth. However, some fetuses are head down, but the head position changes from flexion to extension or the occipital bone is at the back, which belongs to the transverse position of the fetus. For those pregnant women who give birth with their buttocks first (breech presentation), or feet or legs first, or even arms first (transverse presentation), the fetal position is also distorted. This abnormal fetal position is equivalent to setting up an obstacle in the already limited delivery passage of pregnant women, which can easily lead to dystocia. Taking breech presentation as an example, it is very easy to cause placental abruption, leading to umbilical cord prolapse or difficulty in delivery, which will seriously endanger the safety of the fetus.

2. Is it necessary to check the fetal position?

1. The answer is undoubtedly yes. The function of fetal position examination: Through a series of examinations in the late pregnancy, it can basically be determined whether the fetal position is normal. If the pregnant mother finds that the fetus is in a transverse position, the fetal position can be corrected; the fetal position is also one of the bases for choosing the delivery method. Fetal position refers to the posture of the fetus in the mother's womb. The correct posture of the fetus in the mother's womb should be with the head down and the buttocks up. The posture of the fetus in the mother's womb before birth is very important. It is related to whether the pregnant woman chooses natural delivery or difficult delivery. For a natural delivery, the head of the fetus should enter the vagina first. Many fetuses enter the vagina with their heads first, but the heads are tilted upwards, which is also a transverse position of the fetus. The transverse position of the fetus is very harmful to the fetus and the pregnant mother.

2. Because the transverse position of the fetus will cause different degrees of difficulty and risk to pregnant women during delivery, correcting the fetal position in the early stage is of great significance in preventing dystocia in pregnant women. Before the 7th month of pregnancy, because the pregnant woman has relatively more amniotic fluid, the fetus is small and has a large range of movement in the uterus, so it is not easy to fix the position. If the fetus is found to be in a transverse position before the 7th month of pregnancy, it is very likely to be adjusted back to normal under the guidance of a doctor.