Neuromyography mainly refers to the measurement of nerve conduction velocity by electromyography, as well as repetitive nerve electrical stimulation or single-fiber electromyography, both of which are types of electromyography. EMG is mainly used to record the activity of muscles in a quiet state or in different exercise states after inserting circular needle electrodes into muscles, to determine whether the muscle damage is neurogenic or myogenic, and to identify the cause and then give treatment. Neuromyography is mainly used to measure the conduction velocity of nerves and the electromyographic changes after repeated electrical stimulation of nerves, which can clinically provide an objective basis for the diagnosis of early motor neuron disease, deep muscle atrophy, and muscle atrophy in obese children. It is recommended to consult a neurologist to determine the cause of the disease and give the patient the appropriate treatment according to the corresponding test results.