How big is the fetus's abdominal circumference?

Childbirth is divided into two types: natural childbirth and cesarean section. However, natural childbirth is better for both pregnant women and children. However, some pregnant women cannot have natural childbirth and can only have cesarean section, such as malposition of the fetus, many complications during pregnancy, and the older age of the pregnant woman. There are many factors that determine natural childbirth. If the baby's abdominal circumference is too large, it cannot be delivered naturally. So how big is the fetal abdominal circumference that cannot be delivered naturally?

How big is the fetus's abdominal circumference?

If the fetus is in the posterior position during pregnancy, it is a blow to pregnant women who want to give birth naturally, because it is very dangerous to give birth naturally with a fetus in this position.

1. In the occiput posterior position, the uterine contractions will be weak during normal delivery, which will prolong the delivery process. This will increase the possibility of postpartum bleeding and intrauterine infection in pregnant women. It will also increase the possibility of surgical delivery and easily cause damage to the birth canal. Because the fetal head presses on the soft birth canal for too long, intestinal bloating and urinary retention are likely to occur, and in severe cases, genital tract fistula may occur.

2. If the delivery time is too long or surgical intervention is required, the newborn may suffer from scalp edema, hematoma and intracranial hemorrhage, which increases the child's chance of death.

3. Women who give birth naturally in the posterior position are very likely to experience postpartum hemorrhage and puerperal infection. Moreover, if the mother's meal intervals during delivery are too long and she does not get timely replenishment, it will cause electrolyte disorders and acid-base imbalance in the body.

If a woman's fetus is in the posterior position after pregnancy, it is best not to give birth naturally, unless it can be corrected in time, otherwise serious consequences are likely to occur.

What causes occiput posterior position?

After discovering that the occipital posterior position occurs, expectant mothers feel confused and don’t know why this happens. Here we will tell you what causes the occipital posterior position.

1. If the pregnant woman's pelvic shape is abnormal, such as narrow or too small, and the fetus's head is wide, then its occipital part is likely to enter the pelvis in the posterior position.

2. When the head and pelvis are asymmetrical, it will affect the internal rotation of the fetal head, which will cause the posterior occipital position.

3. If there is a problem with the flexion of the fetal head, it will have an adverse effect on the diameter of the fetal head passing through the birth canal. This will also cause problems for the internal rotation of the fetal head, making it difficult for the fetal head to descend, resulting in an occiput posterior position.

4. If the pregnant woman's uterine contractions are not good during pregnancy, it may also cause problems with the internal rotation and descent of the fetal head, which may very likely cause the fetus to be in the posterior position.