Needle electromyography (EMG) is usually performed after nerve conduction studies have been completed, but can be performed first or by itself depending on the clinical indication. No electrical stimulation is used with EMG; the needle is simply a tool to measure the electrical activity in the muscle. The muscles that will be evaluated are chosen carefully based on the differential diagnosis. The examiner should evaluate only the minimum number of muscles that are necessary to do an adequate study, as examining more muscles may make the test more uncomfortable for the patient. It is important to begin with an environment that is conducive to performing a study. Whenever possible, this includes a comfortable, quiet, interference-free environment, which is stocked with the appropriate supplies to limit interruptions. This chapter discusses basic EMG technique. It focuses on reducing anxiety and discomfort of the needle examination. The chapter provides protocol for procedure.