All of the following are associated with breech presentation at normal full term pregnancy, EXCEPT:
**Core Concept**
Breech presentation at normal full-term pregnancy is a condition where the baby's feet or buttocks are positioned to be born first, rather than the head. This can be due to various factors affecting fetal or uterine anatomy.
**Why the Correct Answer is Right**
Breech presentation is often associated with conditions such as multiple gestations, polyhydramnios, and uterine anomalies. However, some conditions may not directly contribute to breech presentation. For instance, maternal obesity is a risk factor for breech presentation due to the increased pressure on the fetus's head, but it is not a direct cause.
**Why Each Wrong Option is Incorrect**
* **Option A:** Multiple gestations are indeed associated with breech presentation, as the crowded uterine environment can lead to the fetus adopting a breech position. Therefore, this option is incorrect as it is actually a risk factor for breech presentation.
* **Option B:** Polyhydramnios, or excessive amniotic fluid, can also contribute to breech presentation, as the increased fluid volume can cause the fetus to move into a breech position. Thus, this option is incorrect as it is associated with breech presentation.
* **Option C:** Uterine anomalies, such as a bicornuate uterus, can increase the risk of breech presentation due to the abnormal uterine shape and size. Hence, this option is incorrect as it is a known risk factor.
**Clinical Pearl / High-Yield Fact**
It's essential to note that breech presentation is more common in nulliparous women (those who have not given birth before) and in women with a previous history of breech presentation. This knowledge can help clinicians identify high-risk patients and take necessary precautions.
**Correct Answer: D.**