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Background:  Neuroregulation of sexual functions requires coordination of parasympathetic, sympathetic, and somatosensory neuronal pathways. The nerves formed by the lower lumbar plexus provide the innervation of the urogenital organs. Lower lumbar disc hernias (LDHs) might impair the neuroregulation of sexual functions by compressing the neural structures. This prospective study aims to evaluate the effect of lower LDHs on libido and sexual dysfunctions., Methods:  A total of 61 sexually active patients diagnosed with single-level LDH who underwent unilateral microdiscectomy were included in the study. The patients' healthy sex partners were included in study as controls. The International Sexual Function Index-5 (IIEF-5) and Female Sexual Function Index (FSFI) were used for sexual assessment of male and female participants, respectively. Visual Analog Scale (VAS) was used for pain assessment., Results:  According to the FSFI scores, all 20 female patients had preoperative sexual dysfunction, which improved in 15 (75%) patients after surgery ( p  < 0.001). According to the IIEF-5 score for men, 38 of 41 male patients had preoperative sexual dysfunction, which improved in 26 (68.4%) patients postoperatively ( p  < 0.001)., Conclusion:  The preoperative sexual dysfunctions of LDH patients improved significantly after the microdiscectomy., Competing Interests: None declared., (Thieme. All rights reserved.)