Learn the ABCs of L&D

Presentation refers to the position of the baby and is generally anterior or posterior. When the baby's face is turned toward the mother's spine, that's considered anterior presentation and the normal position for delivery. Posterior presentation is when the baby is face down, causing "back labor" and making pushing difficult.

With a breech presentation, baby is head up (feet or buttocks first). In a transverse lie, baby is horizontal across the uterus. If baby can't be turned, either presentation may require a C-section.