Most common congenital abnormality of uterus
**Core Concept**
The most common congenital abnormality of the uterus is related to **Müllerian duct anomalies**, which occur during embryogenesis. These anomalies result from the abnormal development of the **Müllerian ducts**, leading to various uterine malformations. The **uterus** is formed by the fusion of the Müllerian ducts.
**Why the Correct Answer is Right**
The correct answer is related to the most frequent type of Müllerian duct anomaly. This anomaly occurs when there is a failure of complete fusion of the Müllerian ducts, resulting in a **septate uterus** or other related conditions. The septate uterus is characterized by a single uterine cavity divided by a **septum**, which can be either partial or complete.
**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not represent the most common congenital abnormality of the uterus.
**Option B:** This option is also incorrect as it is not the most frequent type of Müllerian duct anomaly.
**Option C:** This option is incorrect because, although it is a type of Müllerian duct anomaly, it is not the most common one.
**Clinical Pearl / High-Yield Fact**
The **septate uterus** is a significant congenital abnormality because it can lead to **reproductive issues**, including recurrent miscarriages and infertility.
**Correct Answer:** D. Septate Uterus