When does the fetal position become fixed?

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 first presentation". Delivery in this fetal position is generally smooth. But the fetus is very restless in the mother's belly, so when the fetus is still small, the fetal position is not fixed. So how many months of pregnancy can the fetal position be determined?

Generally, the fetal position will begin to stabilize at the end of June to 7 and a half months. 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 fetus, the fetus is mostly in the position of head down and hips up. 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 first 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, or their feet or legs first, or even their arms first, the fetus is also in a transverse position. 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.

Is it necessary to check the fetal position? The answer is without a doubt. 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.

Because the transverse position of the fetus can cause different degrees of difficulty and risk to pregnant women during childbirth, correcting the fetal position in the early stage is of great significance in preventing dystocia in pregnant women.