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Müllerian agenesis, also referred to as müllerian aplasia, Mayer-Rokitansky-Küster-Hauser syndrome, or vaginal agenesis, has an incidence of 1 per 4,500–5,000 females. Müllerian agenesis is caused by embryologic underdevelopment of the müllerian duct, with resultant agenesis or atresia of the vagina, uterus, or both. Patients with müllerian agenesis usually are identified when they are evaluated for primary amenorrhea with otherwise typical growth and pubertal development. The most important steps in the effective management of müllerian agenesis are correct diagnosis of the underlying condition, evaluation for associated congenital anomalies, and psychosocial counseling in addition to treatment or intervention to address the functional effects of genital anomalies. The psychologic effect of the diagnosis of müllerian agenesis should not be underestimated. All patients with müllerian agenesis should be offered counseling and encouraged to connect with peer support groups. Future options for having children should be addressed with patients: options include adoption and gestational surrogacy. Assisted reproductive techniques with use of a gestational carrier (surrogate) have been shown to be successful for women with müllerian agenesis. Nonsurgical vaginal elongation by dilation should be the first-line approach. When well-counseled and emotionally prepared, almost all patients (90–96%) will be able to achieve anatomic and functional success by primary vaginal dilation. In cases in which surgical intervention is required, referrals to centers with expertise in this area should be considered because few surgeons have extensive experience in construction of the neovagina and surgery by a trained surgeon offers the best opportunity for a successful result.