Can a emg find a pinch nerve if you have cmt?

No: Emg's detect nerves damaged so that neural sheath has been disrupted. Nerves that are intermittently impinged (pinched), & in which there is no cell death, do not provide useful EMG data. This is most unfortunate, and, to my mind, is reason that neurologists, who rely on this test, find no problem where a chronic painful soft tissue neural impingement exists. Wow! this will arouse controversy.

?Charcot Marie Tooth: An EMG would indeed be helpful in assessing a hereditary neuropathy, and to assess presence of superimposed nerve compression, as not a rare situation at all.