Occiput anterior
Abbreviation: OA
Occiput anterior (OA) means your baby is head-down with the back of their head facing your belly button. This is the most common and favorable position for labor because the baby's head can tuck in neatly and fit through your pelvis more easily. The smallest diameter of the baby's head presses on your cervix, which helps it open efficiently. Most babies naturally settle into this position by 36 weeks. If your baby is in OA position heading into labor, you are likely to have a smoother, shorter labor with less back pain.
What This Means for You
Understanding Occiput anterior is an important part of your labor/birth journey. When preparing for birth, understanding this term helps you discuss your birth preferences with your midwife or OB-GYN and know what to expect in the delivery room.
Explore our Birth & Labour guideGood to Know
At your 36-week antenatal visit at KKH or NUH, your obstetrician or midwife will check your baby's position. Gentle walking and upright postures in late pregnancy can encourage an OA position.
Related Terms
Source: https://www.pregnancybirthbaby.org.au/glossary-of-pregnancy-and-labour
Always consult your healthcare provider for personalised advice.
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