The most common uterine anomaly is –
**Core Concept**
The question is testing the knowledge of common uterine anomalies, which are congenital malformations of the uterus. The most common uterine anomaly is a condition where there is a fusion defect of the Müllerian ducts, leading to an abnormal development of the uterus.
**Why the Correct Answer is Right**
The correct answer is a unicornuate uterus, which is a type of Müllerian duct anomaly. It occurs when one of the Müllerian ducts fails to fuse with the other, resulting in a single, smaller uterus. This anomaly is often associated with a rudimentary horn or a non-functional uterus. The unicornuate uterus is a common cause of recurrent miscarriages, preterm labor, and other complications in pregnancy.
**Why Each Wrong Option is Incorrect**
**Option A:** Bicornuate uterus is another type of Müllerian duct anomaly, but it is less common than unicornuate uterus. It occurs when the Müllerian ducts partially fuse, resulting in a heart-shaped uterus.
**Option B:** Septate uterus is a type of Müllerian duct anomaly that occurs when there is a septum or wall of tissue in the uterus. It is not the most common type of uterine anomaly.
**Option C:** Unicornis uterus is another term for unicornuate uterus, but it is not a distinct entity from the correct answer.
**Clinical Pearl / High-Yield Fact**
The most common uterine anomaly is often associated with an increased risk of adverse pregnancy outcomes, including miscarriage, preterm labor, and fetal growth restriction. A thorough evaluation of the uterine anatomy is essential in the management of these patients.
**Correct Answer: C. Unicornuate uterus**