Congenital uterine abnormalities occur as a result of partial or complete failure of Mullerian duct fusion probably about the fifth or sixth week of fetal life. Maternal and/or placental factors have been implicated. There are a few reports of a double uterus occurring in sisters and their mothers (Polishuk & Ron, 1974; Prucha, 1983) which suggest a dominant autosomal gene as a possible genetic...
