Welcome to Connect. I'm glad you found us. Connect is a great place to ask questions and learn what others with similar health problems are doing for treatment. I also have small fiber peripheral neuropathy which I've had going on 20+ years. I was diagnosed with idiopathic SFPN in 2016 when I was concerned it was getting worse.
Sometimes test results can be depressing. You are not alone trying to figure out what it all means in the long run. I have no medical training or background but I I would not focus on the numbers. Keep asking questions and learn as much as you can about your health conditions. Better informed means you can ask your doctors better questions and help them do their job better.
Scott, can you tell us more about your SFN? What type of symptoms caused you to have the biopsy – pain, numbness?
Here are some links that may provide more information for you on SFN:
Easy to understand explanation of small fiber peripheral neuropathy by Matthew B. Jensen. Assistant Professor of Neurology, University of Wisconsin:
I'm also tagging a few members with PN to see if they can share any information with you about biopsy numbers/results. @artscaping, @oldkarl, @medic7054, @lynsorensen — do you have any thoughts for Scott on skin biopsy numbers for small fiber neuropathy?