Polyhydramnios how to rule out deformity

During pregnancy, women, polyhydramnios belong to a diagnosis of B-ultrasound, if B-ultrasound amniotic fluid ultrasound 24cm, it belongs to polyhydramnios, there are many reasons for polyhydramnios, common is fetal digestive system malformation, neural tube malformation, you can through amniotic fluid puncture, B-ultrasound examination preliminary diagnosis whether there is fetal malformation.