Learn about the six possible twin fetal presentations: vertex-vertex, vertex-breech, breech-breech, vertex-transverse, breech ...

The medical term for this is vertex presentation ... that increases your risk of what's called a breech birth, which is when the baby usually emerges feet or butt-first. "A baby that's delivered ...

is usually the baby's head (known as vertex presentation). In a small number of deliveries, however, a baby’s bottom or feet are in a position to be born first. This is called a breech ...

Breech babies are at risk of injury and a prolapsed umbilical cord. Transverse lie is the most serious abnormal presentation, and it can lead to injury of the uterus (ruptured uterus) as well as ...