The occurrence of all types of paramesonephric duct abnormalities in women is estimated around 0.4%. A<unk>  is estimated to occur in 0.1–0.6% of women in the US. It is possible that this figure is an underestimate, since subtle abnormalities often go undetected. Some intersex individuals whose external genitalia are perceived as being male may nonetheless have a variably shaped uterus. Women exposed in utero to diethylstilbestrol (DES) are at risk for this abnormality.
Bicornuate uterus
Unicornuate uterus
Arcuate uterus
Couvelaire uterus
T-shaped uterus
Retroverted uterus
Ectopic decidua
Peritoneal inclusion cyst