obstructed labor
Comprises a range of conditions, including non-optimal contractions and cervical dilation, fetal factors such as position, e.g., shoulder dystocia, and macrosomia (heavier than average birth weight)
breech presentation
malpresentation of the fetus at near term or during labor with the fetal cephalic pole in the fundus of the uterus
Locked twins
multiple pregnancy in which fetuses are interlocked
Shoulder presentation
medical condition