This case demonstrates the use of a single levonorgestrel 13.5 mg intrauterine system (IUS) for contraception in a patient with uterine didelphys. IUS are contraindicated for use with Congenital Müllerian uterine anomalies, but there is very limited evidence to support this restriction.
Keywords: Congenital Mullerian uterine anomaly; Intrauterine device; Intrauterine system; Uterine didelphys.
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