What is it called when the fetus presents with the feet or buttocks first during birth?

The term used to describe the situation when the fetus presents with the feet or buttocks first during birth is known as a breech birth. In a breech presentation, the typical position for birthing—in which the head comes out first—is altered, resulting in the feet or buttocks leading the birth canal. This can complicate the delivery process and may require special medical attention, as it poses risks for both the mother and the infant. Understanding this specific term is important for those working in fields related to obstetrics, as it helps them communicate effectively about different types of birth presentations and the associated medical considerations.