What is the term for a delivery where the buttocks present first?

A delivery in which the buttocks present first is referred to as breech presentation. This term specifically describes the position of the fetus during delivery. In a typical cephalic presentation, the head of the baby appears first, which is the most favorable position for a vaginal delivery. In contrast, a breech presentation can complicate childbirth, as the baby's body may not fit through the birth canal in the optimal manner.

Transverse presentation occurs when the baby is lying horizontally across the uterus rather than vertically, which is also not an ideal position for delivery. Compound presentation refers to a scenario where more than one part of the baby presents at the cervical opening, such as a hand alongside the head, which differs significantly from the breech position. Therefore, the terminology surrounding these presentations is crucial in obstetric care as it influences management strategies during labor and delivery.