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<b><i>Background:</i></b> Although acupuncture is effective in the treatment of lumbar disc herniation (LDH), based on comprehensive literature review, reports of the resorption of large herniated discs in LDH patients treated merely by acupuncture are very rare. <b><i>Case Report:</i></b> A 49-year-old patient presented with distending pain in the left lower limb and numbness on the dorsum of the left foot. Physical examination revealed positive signs associated with mechanical compression by herniated lumbar discs. Magnetic resonance imaging (MRI) at symptom onset confirmed the diagnosis of LDH at L₄-L₅ and L₅-S₁. Electroacupuncture was administered on local acupoints combined with distal acupoints. His clinical symptoms gradually improved with time throughout acupuncture treatment, verified by increased Japanese Orthopaedic Association scores. The patient was discharged after a total of 20 acupuncture sessions within 1 month. Follow-up indicated that his symptoms had disappeared completely at 1.5 months after discharge and had not recurred since then. At the 10-month follow-up, MRI re-examination confirmed that the herniated discs had been resorbed significantly. <b><i>Conclusion:</i></b> Electroacupuncture could significantly improve clinical symptoms and might promote the spontaneous resorption of herniated discs in LDH patients. Thus, for LDH patients suitable for conservative treatment, electroacupuncture could be a favourable option recommended to patients.