Pillow into the basin

According to reports at home and abroad, about 50% of mothers enter the pelvis in a occipital transverse position, which should be the normal connection position for head birth. The so-called entering the basin means that when the pregnancy is coming to an end, the fetus is surrounded by amniotic fluid and fetal membranes, with its head down, its hips facing up, and its body curled up, waiting for the opportunity. Before giving birth, the first thing the fetus is forced to do is to make its body position by passing its head through the mother's pelvic entrance into the pelvic cavity.