Right occipital anterior fetus

Fetal position refers to the specific position of the fetus's presenting part in relation to the front, back, left and right of the mother's pelvis. The normal fetal position is mostly occipital anterior. After 30 weeks of pregnancy, during pregnancy check-up, breech position, transverse position, occiput posterior position, and face position were found. This is called malposition of fetus, among which breech position is the most common. If the transverse position of the fetus is not corrected, it may lead to dystocia during delivery.

Right occipital anterior fetal position

It is a kind of fetal position, which is a very ideal fetal position. Fetal position

Fetal position refers to the specific position of the fetus's presenting part in relation to the front, back, left and right of the mother's pelvis. The normal fetal position is mostly occipital anterior. After 30 weeks of pregnancy, during pregnancy check-up, breech position, transverse position, occiput posterior position, and face position were found. This is called malposition of fetus, among which breech position is the most common. If the transverse position of the fetus is not corrected, it may lead to dystocia during delivery.

Necessity of right occipital anterior position

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. 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 also have their heads facing down, but their head position changes from flexion to extension or their occipital bone is to the side and back, which is considered a transverse position. For those pregnant women who give birth with their buttocks first (breech presentation), or feet or toes first, or even arms first (transverse presentation), the fetus is also in transverse presentation. 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. Based on the characteristics of breech presentation, 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. Another example is the transverse position. Because the first part of the pregnant woman cannot be close to the cervix during delivery, the pressure on the uterus is uneven, which can easily cause uterine contractions and lead to fetal distress or suffocation.