36 weeks dual parietal diameter is generally around 9.0cm, but the development of each child is different, there is a certain error, as long as the baby is developing normally, this is generally not a big impact, to regular ultrasound checks. During pregnancy, it is advisable to strengthen dietary nutrition, it is recommended to eat more beef, mutton, fish, shrimp, etc., can be supplemented with protein, which helps the development of the fetus, pay attention not to eat spicy and stimulating food, which can easily cause fire, which can seriously cause constipation during pregnancy, it is recommended to eat more vegetables and fruits to reasonably supplement vitamins to prevent constipation. It is best to be active in late pregnancy to help reduce constipation during pregnancy, but it is best not to exercise strenuously, and if redness and premature rupture of amniotic fluid occur in late pregnancy, it is best to go to the hospital in time for delivery.