Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.
Definition of Reinnervation
Medically reviewed by Min Clinic Staff | Updated: January 2026
Reinnervation: Restoration of nerve function after it has been lost. Reinnervation may occur spontaneously or be achieved by nerve grafting. The EMG (electromyogram) may show evidence of denervation with subsequent reinnervation in motor neuron diseases such as ALS (amyotrophic lateral sclerosis) because the remaining healthy motor neurons can reinnervate the denervated muscles.