Arcuate Uterus

Definition - What does Arcuate Uterus mean?

Arcuate uterus is a congenital (from birth) uterine disorder that results in a misshapen uterine cavity. An arcuate uterus is characterized by a slight indentation at the uterine fundus, or the top, center portion of the uterus. An arcuate uterus is technically considered a Mullerian duct anomaly, but the condition is typically so mild that it is rarely the cause of infertility or reproductive failure, common with other Mullerian duct anomalies.

FertilitySmarts explains Arcuate Uterus

The Mullerian ducts begin as two small tubes that form early in fetal development. These two tubes fuse together, creating one large, follow cavity, known as the uterus. Mullerian duct anomalies refer to abnormalities of the uterine shape, caused by improper growth or fusing of these tubes.

The arcuate uterus is the most common of these abnormalities, representing less then 4% of the population. While Mullerian duct anomalies are typically associated with infertility, first-trimester miscarriage, preterm labor, and other fetal disorders, the arcuate uterus is the least likely condition to produce these outcomes. Many medical professionals consider an arcuate uterus a normal uterine shape.

Other types of Mullerian duct anomalies include:

  • Unicornate uterus
  • Bicornate uterus
  • Septate uterus
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