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abnormal fetal position

Abnormal fetal position is one of the common factors causing dystocia. During delivery, occipital anterior position (normal fetal position) accounts for about 90%, while abnormal fetal position accounts for about 10%, among which abnormal fetal head position is the majority, and there are persistent occipital transverse position and persistent occipital posterior position due to obstruction of fetal head rotation in pelvic cavity; There are different degrees of face extension due to poor flexion of fetal head, forehead...

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