Objective: To report a rare uterine anomaly of a septate uterus, double cervix, and double vagina. Design: Case report. Setting: A university- based reproductive endocrinology center. Patient(s): A 20- year- old nulligravida with primary infertility. Intervention(s): Clinical examination and surgical resection of a vaginal septum with hysteroscopic examination of both hemicavities. Main Outcome Measure(s): Description and treatment for a rare uterine anomaly and a subsequent literature search. Result(s): Successful resection of vaginal septum and subsequent spontaneous pregnancy. Conclusion(s): This rare anomaly is not explained by classic embryologic teaching and is not described by the classification system currently used to describe mü llerian anomalies. Objective: To report a rare uterine anomaly of a septate uterus, double cervix, and double vagina. Design: Case report. Setting: A university- based reproductive endocrinology center. Patient (s): A 20- year- old nulligravida with primary infertility Intervention (s): Clinical examination and surgical resection of a vaginal septum with hysteroscopic examination of both hemicavities. Main Outcome Measure (s): Description and treatment for a rare uterine anomaly and subsequently prosthesis search. Result (s): Successful resection of vaginal septum and subsequent spontaneous pregnancy. Conclusion (s): This rare anomaly is not explained by classic embryologic teaching and is not described by the classification system currently used to describe mü llerian anomalies.