What is unicornuate uterus?

Also known as: uterine malformation.

A Unicornuate uterus is a rare congenital (before birth) abnormality that results from the two tubelike fetal structures that normally make up the uterus not forming in the correct way. Instead of the usual two horned shape, the uterus has a curved, banana-like shape resulting in only one half of the uterus being formed (sometimes there is also a second much smaller half of a uterus present which may not be connected to the rest of the uterus). The horn-like shape of the uterus is the reason for the term “unicornuate”.

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Reviewed by: Jack Wolfsdorf, MD, FAAP

This page was last updated on: 1/29/2019 3:21:13 PM