RADIOLOGICAL ARTICLE #2


Understanding Placental Positions on Ultrasound


During pregnancy, the position of the placenta plays a crucial role in the health of both the mother and the baby. In this post, we will explore the different placental positions that can be seen on an ultrasound and what they mean.


Anterior Placenta - 

The anterior placenta is the most common placement. 

It attaches to the front wall of the uterus. When viewed in a longitudinal ultrasound, it appears on the upper part of the image. In this position, the fetus typically lies in a back-to-back or occipital posterior position. This means the baby’s head is down towards the cervix, with its back and spine aligning against the mother’s spine.

Posterior Placenta - 

Next, we have the posterior placenta. This type attaches to the back wall of the uterus. In a longitudinal ultrasound view, it will show up in the lower half of the image. The position of the posterior placenta can affect fetal movements and may lead to different sensations experienced by the mother.

Fundal Placenta - 

The fundal placenta is located at the top of the uterus. In a trans-abdominal longitudinal view, it can be seen on the left side of the image. This position is generally considered safe and is common during pregnancy. If the placenta is in this position, it provides a broad area for nutrient transfer between the mother and the baby.

Lateral Placenta -

Lateral placentas are attached to either the left or right wall of the uterus. 
Though less common than anterior, posterior, or fundal placements, they are still significant. 
In the ultrasound images, one may see the placenta attached to either side of the uterus. This position can vary and may influence how the baby moves within the womb.

Conclusion -

Understanding the different positions of the placenta during pregnancy is essential for monitoring the health of both mother and baby. Anterior, posterior, fundal, and lateral placements all have unique characteristics that can affect the pregnancy experience. Stay informed about these positions and consult your healthcare provider for any concerns. 


Please check out this video to get more details -



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