Hello @chandyjohn1, Welcome to Connect. I have no medical training or background but I think peripheral neuropathy and small fiber neuropathy have one thing in common - small fiber nerves. I shared a short video by Matthew B Jensen Assistant Professor of Neurology, University of Wisconsin that gives a good explanation of how the different neuropathies are diagnosed in an earlier post in this discussion. Here is a link to the post with the video: https://connect.mayoclinic.org/discussion/ideas-for-pain-from-small-fiber-neuropathy/?pg=8#comment-332835

Have you been diagnosed with small fiber neuropathy or peripheral neuropathy?