Peripheral nervous system development begins in prenatal period and continues after birth up to 5 years of age. As a result, Sensory nerve conduction velocity (SNCV) varies during first five years of life of children. Aims and Objectives: The purpose of this study is evaluation of the SNCV of median, ulnar and sural nerve during the first five years of life. Material and Method: SNCV of median, ulnar and sural nerves was measured antidromically in 104 normal under-five children. Statistical

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... ysis of the results was done using SPSS 17.0 software. Results: There was a progressive increase in SNCV of median, ulnar and sural nerves with age. SNCV of all three nerves showed significant positive correlation with age factor. Conclusion: There is significant increase in SNCV of median, ulnar, and sural nerves with age in under-five children. Therefore, age-specific reference values of SNCV for the different nerves in children below 5 years of age are important to evaluate nerve injury or maturational deficit.