The bigger the pelvis, the easier it is for the baby to be delivered from the pelvis during natural delivery. But actually this sentence is not correct. Whether the labor can be delivered smoothly depends on the width and inclination of the female pelvis, and the outlet of the pelvis should be wide. Some women with big hips have small pelvis, but only because there is more fat in the lower body. Such a body shape will be more likely to cause pregnancy-induced hypertension and dystocia.
Therefore, an important factor of good fertility is the size of pelvis, not the size of ass. The prerequisite for natural childbirth is not just the size of the pelvis. It may be relatively easy for a woman with a large pelvis to give birth, but natural childbirth is not just the size of the pelvis. Giving birth to a child is a complex project, and productivity, birth canal conditions and fetal condition are also crucial. During natural delivery, apart from strong contractions, abdominal muscles, diaphragm and levator ani should be assisted to separate the fetus from the mother.
Does the birth canal include pelvis and soft birth canal? No matter how wide the pelvis is, the eloquence in the pelvis is the necessary passage for the fetus to pass during delivery, but the width, inclination and outlet size of the pelvic internal opening cannot be seen through the size of the buttocks, and can only be measured through internal examination before delivery.
The condition of the fetus, including the size of the fetus and whether the fetal position is normal. If the fetus is too big or the fetal position is not correct, even the pelvic width will not help.