Abstract
Complex Müllerian anomalies, such as a complete septate uterus (U2b), cervical duplication (C2), and a non-obstructive longitudinal vaginal septum (V1), are rare malformations with intricate embryological origins. They often remain undiagnosed in the absence of specific clinical symptoms. This case highlights the diagnostic value of pelvic magnetic resonance imaging (MRI) and the therapeutic benefit of personalized surgical management. In our patient, surgical resection of the vaginal septum led to significant symptomatic improvement, including the restoration of a satisfactory sexual life.