How do pregnant women with narrow pelvis give birth?

If the pelvic outlet diameter is less than 7 cm, it is defined as moderate to severe stenosis. If the pelvic outlet diameter is less than 7 cm, it is generally not recommended to try labor unless it is premature. If the pelvis is above 7.5 cm, it is generally recommended to give birth naturally. 7~7.5 cm, if the fetus size in five jin or so, you can try to give birth, if more than 6 jin to 7 jin, do not advocate trial birth. This is a rough estimate range, in the process of delivery more pay attention to, pay attention to judge the fetal position and cephalopelvic relationship. If the cephalopelvic relationship is not good, in production often need to turn cesarean section, if the fetal position is positive, cephalopelvic relationship has been very good, even if the child is older, pelvis is smaller, can also be delivered.