A baby in the posterior position is head down but facing the mother's abdomen.
Understanding Posterior Position
The position of a baby in the womb greatly impacts labor and delivery. The term "posterior" refers to the baby's occiput (the back of the head) facing the mother's back. This is sometimes referred to as "occiput posterior" or "OP".
Anterior vs. Posterior
Here's a quick comparison:
Position | Description | Impact on Labor |
---|---|---|
Anterior | Head down, facing the mother's back. | Generally easier and shorter labor. |
Posterior | Head down, facing the mother's abdomen. | Can lead to longer, more painful labor. |
Why Posterior Position Matters
When a baby is in the posterior position, the bony part of their skull presses against the mother's spine during labor. This can cause:
- Back labor: Intense pain felt primarily in the back.
- Longer labor: The baby may have more difficulty navigating the birth canal.
- Increased likelihood of interventions: Such as vacuum extraction, forceps, or C-section.
It's important to note that many babies in the posterior position will rotate to the anterior position during labor. There are also techniques and positions mothers can use during pregnancy and labor to encourage the baby to turn.