Non-Length Dependent Small Fiber Neuropathy

Posted by kathleen123 @kathleen123, Feb 22, 2021

there is much discussion of PN but seldom is much said about non-length dependent neuropathy. I guess it must be relatively rare. The condition affects all different parts of the body. I think it is usually idiopathic as is mine is. I was diagnosed with it more than 10 years ago. I’d like to hear from others with this type of small fiber neuropathy.

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Profile picture for Leonard @jakedduck1

@alan123123
Unfortunately it is doubtful your neuropathy will improve or be reversed over time. However, certain medications may be helpful.
My neuropathy continued to worsen over time. It's now at level 4 but my symptoms have improved. I no longer have the burning, stinging, tingling, shooting, stabbing or aching pains that I did in the beginning. Now I only have numbness. My neuropathy is believed to have been caused by lo v term multiple seizure medications.
Take care,
Jake

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Why did you say its doubtful to improve?

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Profile picture for sdmamaof2 @sdmamaof2

I am 30 and we have a similar situation, how are you doing now?

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So much has changed (progressed unfortunately) with my disorders & it’s become quite frustrating to say the least….I was recently diagnosed with trigeminal neuralgia in Dec 2024 along with dermatomyositis, and let me tell ya - the winter time is especially HORRIBLE! I couldn’t even have the heater on my car blowing on direct heat, and only on defrost on low because the tingling/burning sensations on my face were excruciating & I’ve also learned that this heightened sensitivity has also caused so much havoc with the ceiling registers in the house and even vibrations in the car when I drive, which my neurologist said I kind of have the worst of both worlds going on with the Tri N and SFN when it comes to that. At some point over the past 7-8 months, I’ve developed some type of advanced infection that my GI suspects is some sort of systemic involvement with bacteria and yeast, so has referred me to an infectious disease provider…just waiting on the call to schedule the appt & hoping that maybe those were compounding my issues with the SFN and Tri N and this winter won’t be so bad, but not sure yet. How are you doing!? Would love to hear more of your story - feel free to private message (if that’s a thing?)

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Profile picture for sdmamaof2 @sdmamaof2

Why did you say its doubtful to improve?

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@sdmamaof2
I shouldn't have said that.
There is always hope.
However, neuropathy does more often worsens than improves.
How often do you see patients who's neuropathy is cured or improving on this forum? I think that adds some credence to my claim.
@alan123123 has your neuropathy improved?
@sdmamaof2, if you have neuropathy has it improved?
Take care,
Jake

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Profile picture for Leonard @jakedduck1

@sdmamaof2
I shouldn't have said that.
There is always hope.
However, neuropathy does more often worsens than improves.
How often do you see patients who's neuropathy is cured or improving on this forum? I think that adds some credence to my claim.
@alan123123 has your neuropathy improved?
@sdmamaof2, if you have neuropathy has it improved?
Take care,
Jake

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I am not on this forum often but in other forums I have seen people who have had it improve several times 🙂

I think these spaces tend to be full of people more in the middle of their struggle and people are less likely to come on these spaces if they have improved. I agree though that it is less common than those that plateau ot worsen.

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Profile picture for raepent1 @raepent1

So much has changed (progressed unfortunately) with my disorders & it’s become quite frustrating to say the least….I was recently diagnosed with trigeminal neuralgia in Dec 2024 along with dermatomyositis, and let me tell ya - the winter time is especially HORRIBLE! I couldn’t even have the heater on my car blowing on direct heat, and only on defrost on low because the tingling/burning sensations on my face were excruciating & I’ve also learned that this heightened sensitivity has also caused so much havoc with the ceiling registers in the house and even vibrations in the car when I drive, which my neurologist said I kind of have the worst of both worlds going on with the Tri N and SFN when it comes to that. At some point over the past 7-8 months, I’ve developed some type of advanced infection that my GI suspects is some sort of systemic involvement with bacteria and yeast, so has referred me to an infectious disease provider…just waiting on the call to schedule the appt & hoping that maybe those were compounding my issues with the SFN and Tri N and this winter won’t be so bad, but not sure yet. How are you doing!? Would love to hear more of your story - feel free to private message (if that’s a thing?)

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Wow— you are going through it. I am so sorry! How long ago was your onset of SFN and how long did it take to turn into TN and is it both sides of the face?

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Profile picture for sf2021 @sf2021

It has plateaued but I still have left face pain, burning mouth and left hand/arm burning and stinging (occasionally right hand/arm, too). Pain score of 2-4 out of 10 pretty much every day. Keeping my fingers crossed it doesn’t get worse. It has been almost five years since the onset. I now have episodes where I get sweaty all of sudden but at least it is not painful. The buzzing is almost gone. I never know where and when I will get the symptoms. I hope you are feeling better. Good news is I have not gotten worse. Stay positive!

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Hi I’m taking nortriptyline now and my symptoms have slowly improved with fluctuating symptoms. Not sure how much it’s the nortriptyline helping or my neuropathy is improving. I’m in a lot better place now than I was a year ago. I’ve changed my lifestyle. I don’t drink alcohol anymore and I find drinking lots of water staying hydrated makes a difference to my symptoms.

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Profile picture for sdmamaof2 @sdmamaof2

Wow— you are going through it. I am so sorry! How long ago was your onset of SFN and how long did it take to turn into TN and is it both sides of the face?

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I think the biopsies were done for SFN in 2021. I had to relocate due to a breakup and moved from Florida to Indiana Nov 2024. So, of course, winter’s onset began along with a lot of other stressors and I had a virtual appt with my rheumatologist in FL (I hadn’t yet gotten established with any specialists here) - my symptoms at that time were showing the dermatomyositis similarities, so she gave me a bloodwork order and it confirmed that. I had gotten an appt with a rheumatologist here in Indiana Feb 2025 and they confirmed the derm diagnosis along with CREST syndrome and she reviewed my neurologist’s file from FL and my new symptoms and referred me to the neuro which took a little longer to see, but her impression was that it was TN - so officially until I saw the neuro in June 2025, I didn’t get it confirmed with the “correct” specialist until then. It’s mostly on my left side, but my right side occasionally chimes in.

I had other complications previously with the autoimmune stuff (MCTD/Hashimoto’s among others) - but had an episode where I blacked out and fell in the bathroom and woke up on the floor bleeding from my face - later confirmed concussion & still persisting damage from the head injury - so it’s unclear if the TN actually was caused by the fall in Dec 2023 and part of the post concussion syndrome or if it’s part of the autoimmune stuff or if it’s part of the SFN…It’s a crazy roller coaster I’ve been on - and my stuff came on in for years slowly but surely but heightened in April 2020 - I’ve never had Covid - I’ve been tested numerous times for the illness as well as the antibodies - i think everything has been hiding in my body for years and my “go-go-go” work my tail off long hours to live my dream life finally came to a head about 3 months after I turned 40 - - so it’s crazy when people say “once you hit 40…” “it’s all down hill from there” - they aren’t lying!!!! Because it came and hit me like a brick wall that’s for sure…

My relocation initially was a good one, but then it turned sour quickly due to my dad’s rekindling of his previous wife & her high drama life - so my nervous system has definitely not had time to rest and heal anything that was already happening & therefore, the hits just keep coming - 🙁

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Profile picture for John, Volunteer Mentor @johnbishop

Thanks for starting this discussion @kathleen123. You bring up an excellent point about not a lot being known about non-length dependent neuropathy, especially by us patients with neuropathy. Here are some scholarly type articles that may help us learn more about non-length dependent neuropathy.

- Non-length-dependent and length-dependent small-fiber neuropathies associated with tumor necrosis factor (TNF)-inhibitor therapy in patients with rheumatoid arthritis: Expanding the spectrum of neurological disease associated with TNF-inhibitors: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4605274/
- Longitudinal Assessment of Small Fiber Neuropathy - Evidence of a Non–Length-Dependent Distal Axonopathy: https://jamanetwork.com/journals/jamaneurology/fullarticle/2511289
- Is Non-Length-Dependant Small Fiber Sensory Neuropathy an Inflammatory Neuropathy?: https://n.neurology.org/content/80/7_Supplement/P01.140
- "Feb 27, 2019 — Rarely, a non-length-dependent neuropathy manifests over the trunk, face, proximal limbs, or other focal areas. Symptoms of SFN may differ ..." - Small Fiber Neuropathy Symptoms and Causes: https://www.news-medical.net/health/Small-Fiber-Neuropathy-Symptoms-and-Causes.aspx

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I am a victim of non-linked dependent small fiber neuropathy that was rapid onset. I have been on all of my skin from my head to my toes and every crack and crevice and have so far over six years. I would love to meet and talk to people then also suffer from this terrible invisible disease that can be debilitating pain wise

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Profile picture for blueyedawn @blueyedawn

I am a victim of non-linked dependent small fiber neuropathy that was rapid onset. I have been on all of my skin from my head to my toes and every crack and crevice and have so far over six years. I would love to meet and talk to people then also suffer from this terrible invisible disease that can be debilitating pain wise

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Welcome @blueyedawn, Having a condition like neuropathy is not something I would wish on anyone. Sorry to hear that yours developed so rapidly. While you wait for other members to respond, I thought you might like to scan through other discussions and comments from members who have mentioned non length dependent neuropathy - https://connect.mayoclinic.org/search/?search=non%20length%20dependent%20neuropathy.

Have the doctors or neurologists been able to determine a cause of the rapid onset? Have you started or tried any treatments?

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Profile picture for blueyedawn @blueyedawn

I am a victim of non-linked dependent small fiber neuropathy that was rapid onset. I have been on all of my skin from my head to my toes and every crack and crevice and have so far over six years. I would love to meet and talk to people then also suffer from this terrible invisible disease that can be debilitating pain wise

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Hi there,
I am so sorry you’re dealing with this pain.
Mine started up my legs in 2019 and is now all over my body! My mouth burns inside and out, my head feels like someone is pouring hot water on my brain. My neurologist thinks I have an underlying rheumatism that is not showing up yet. I’ve been on Gabapentin, Lyrica and now I am on Cymbalta. Nothing has helped.
I’m able to function daily by the grace of God!
I pray you find help soon!
You are not alone!🙏🏼

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