breech presentation
Fetal position where the buttocks or feet present first at delivery instead of the head.
Full Definition
A fetal presentation where the buttocks, feet, or both are positioned to be delivered first, occurring in approximately 3-4% of pregnancies at term. Three types exist: frank breech (hips flexed, knees extended), complete or full breech (both hips and knees flexed), and incomplete or footling breech (one or both feet present first). Most cases convert to vertex presentation spontaneously before term, but persistent breech presentation may require external cephalic version attempts or cesarean delivery planning. Risk factors include oligohydramnios, multiple pregnancy, uterine abnormalities, and previous breech presentation.
Usage
Usage note: Specify the type of breech presentation when documenting.
In Context
- "Frank breech presentation was confirmed at 36 weeks, prompting discussion of external cephalic version." — Third trimester prenatal visit
- "Cesarean delivery was scheduled for persistent complete breech presentation at term." — Delivery planning note