Characteristics of fetal movement in left occipital anterior position

During pregnancy, everyone hopes that the fetus can develop smoothly, but this process is not always smooth. Various abnormal phenomena often occur during pregnancy. Malposition of the fetus is a typical one. Different positions will affect fetal movements, thus showing fetal movements with different characteristics. So, what are the characteristics of fetal movement in left occipital anterior position? Let’s take a look below.

Left occipital anterior position means that when the fetus enters the pelvic canal from the abdominal cavity during delivery, the head should be the first to enter. The head is bent into place, which is called occipital presentation, that is, the first thing to pass through is the fetal occipital bone. The fetal occipital bone is located in the left front of the maternal pelvis relative to the mother's body, which is called left occipital anterior position. Clinically, occipital presentation accounts for 95.55% to 97.55%, with left occipital anterior position being the most common. Generally, the fetus will automatically turn into a normal fetal position in the late pregnancy.

The pillow refers to the baby's back of the head (occipital bone). The front pillow position means that the baby's back of the head is facing forward, and the baby and mother are face to face. The left is on the left side of the uterus. The front pillow fetal position is most conducive to normal delivery.

If the vertex is presented first, the occipital bone is on the left side of the pelvis and facing forward, then the fetal position is left occipital anterior, which is the most common normal fetal position and also the one that is easier to deliver naturally. Congratulations!

The fetal position refers to the position of the presenting part in the maternal pelvis, that is, the four phases of the pelvis - left anterior, right anterior, left posterior, and right posterior.

The representative bone of vertex presentation is the occipital (abbreviated as o); the representative bone of breech presentation is the sacrum (abbreviated as s); the representative bone of face presentation is the mandible (abbreviated as m); and the representative bone of shoulder presentation is the scapula (abbreviated as sc).

The writing of fetal position is indicated by three aspects:

1. Represents the left or right side of the pelvis, abbreviated as left (l) or right (r);

2. Representative bone names, such as "o" for vertex presentation, "s" for sacrum presentation, "m" for face presentation, and "sc" for shoulder presentation;

3. Represents the bone in front, back or across the pelvis. For example, if the baby is vertex first and the occipital bone is on the left side of the pelvis and facing forward, the fetal position is left occipital anterior (loa), which is the most common fetal position.

Six fetal positions

The abbreviations for each fetal position are as follows:

There are six types of vertex presentation:

Left occipital anterior (loa) Left occipital transverse (lot) Left occipital posterior (lop) Right occipital anterior (roa) Right occipital transverse (rot) Right occipital posterior (rop)

There are six breech presentation positions:

Left sacral anterior (lsa) Left sacral transverse (lst) Left sacral posterior (lsp) Right sacral anterior (rsa) Right sacral transverse (rst) Right sacral posterior (rsp)

There are six types of face presentation:

Left chin anterior (lma) Left chin transverse (lmt) Left chin posterior (lmp) Right chin anterior (rma) Right chin transverse (rmt) Right chin posterior (rmp)

There are four types of fetal positions:

Left shoulder anterior (lsca) Left shoulder posterior (lscp) Right shoulder anterior (rsca) Right shoulder posterior (rscp)