Is there a new blood test to determine cause of neuropathy?

Not sure if these are the same but they do sound interesting...

-- Breakthrough Test Enhances Peripheral Neuropathy Care and Research:
https://news.mayocliniclabs.com/2026/03/05/breakthrough-test-enhances-peripheral-neuropathy-care-and-research/
-- Neuropathies - Insights - Mayo Clinic Laboratories - Mayo Clinic Laboratories' new test panel can distinguish among various potential causes of demyelinating neuropathies.
https://news.mayocliniclabs.com/neurology/autoimmune-neurology/neuropathy/

arfiml33, your physician can order this test by filling out these forms https://www.testcatalog.org/show/SORD

@johnbishop Demyelinating neuropathy is different than your “everyday” version I believe.

My father had CIDP, Chronic Idiopathic Demyelinating P….. (I forget the word). Anyway, he was in terrible pain because the myelin sheath was wearing away off his nerves.

@SusanEllen66 I was just at neurology in the past week. They said my neuropathy, currently, is not demyelinating. But they said that they do check for that as it can evolve into that.

I found this below in a search. There were links in it but the links do not seem to copy over into here. I just search for "is there a new blood test from mayo to find the cause of peripheral neuropathy."

"Yes, Mayo Clinic Laboratories offers advanced tests to identify peripheral neuropathy causes. Recent breakthroughs include a blood test for SORD deficiency, a genetic disorder, and specialized panels that detect autoantibodies linked to immune-mediated or genetic forms of the disease.
These advanced testing options include:
SORD Test: This assay measures levels of sugar alcohols (sorbitol and xylitol) in the blood to quickly diagnose a hereditary peripheral neuropathy.
Autoimmune Neuropathy Panels: These tests identify specific biomarkers that help doctors distinguish between different potential causes, such as axonal or demyelinating neuropathies.
Next-Generation Sequencing (NGS): Genetic panels help establish whether a neuropathy is hereditary rather than acquired.You can read more about these diagnostic options on the Mayo Clinic Laboratories overview page."