Conclusions When the pelvis was normal, fetal macrosomia, abnormal fetal position and abnormal uterine were main causes leading to abnormal second stage of labor.
结论在骨盆正常情况下，新生儿过大、胎方位异常及产力异常是造成第二产程异常的主要原因。
2
These fetal kidneys (from a gestation estimated at 25 weeks in the second trimester) demonstrate a normal cut surface. Note the pelvis and calyces. Note the well-defined corticomedullary junctions.