Arcuate and bicornuate uterine anomalies and infertility.

Twenty-three patients presenting with infertility were found to have uterine anomalies. Eighteen had primary infertility. Six (86%) of seven patients with arcuate uterus achieved a term pregnancy. Five patients of these seven had primary infertility. Of the 13 patients with bicornuate uterus, 6 subsequently underwent a metroplasty and 4 (67%) of these latter patients achieved a term pregnancy. Of the remaining seven patients with bicornuate uterus, one achieved pregnancy during investigations, one refused surgery, and five were not operated upon because of uncorrected nonuterine factors. One other patient was found to have uterus didelphys and two had a unicornuate uterus. No patients with septate uterus were found. The implications of a uterine anomaly as a cause of primary infertility are discussed.