When I had mine they did both legs. The good leg wasn't too bad..hurt a little but manageable. Once they got to the bad leg....I sobbed the entire time. The dr. kept asking if I wanted him to stop. At the time, I only thought it would not give them the answers they needed. The stupid neuro didn't even pass on my reaction to the emg. Anyway, personally, I would not do it but that is me. Good luck.