Once the shock of the diagnosis settles, almost everyone arrives at the same question.
Is this going to keep getting worse?
It’s the question that matters most and the one that tends to get the vaguest answer — usually some version of “keep your sugars under control.” That advice isn’t wrong, but it’s considerably less complete than it sounds, and for a large group of people it’s substantially less powerful than they’ve been led to believe.
Here’s a straighter account.
First, the Rate
Neuropathy generally progresses, but not dramatically. Longitudinal studies have documented a deterioration in nerve conduction velocity of roughly half a metre per second per year in both type 1 and type 2 diabetes.
That’s slow. It’s the reason trials in this field typically need at least twelve months to detect meaningful change.
Why that’s worth knowing: the fear people carry is often of rapid decline, and that’s not the usual pattern. If your symptoms are changing quickly — over weeks rather than years — that’s not typical progression and it deserves prompt medical assessment rather than acceptance.
The Distinction Nobody Explains
Here’s the finding that reframes this whole conversation, and it’s rarely explained to patients.
In type 1 diabetes, glycemic control works. Improved glucose control is associated with a substantial reduction in the risk of developing neuropathy — reported as a relative risk reduction in the region of 78%. That’s a large effect, and it makes tight control genuinely central.
In type 2 diabetes, the same intervention does considerably less. Multiple clinical trials have failed to show a similar benefit. The relative risk reduction from enhanced glycemic control in type 2 has been reported at around 5 to 9%.
Not zero. But nowhere near the type 1 figure — and a long way from what most people assume when they’re told to focus on their numbers.
Why the difference? The prevailing explanation is that neuropathy in type 2 diabetes isn’t driven by high glucose alone. It sits within metabolic syndrome — the cluster of raised blood pressure, abnormal lipids, excess weight and insulin resistance — and that broader picture appears to be doing a great deal of the damage.
Which is why reviews of this area conclude that managing neuropathy in type 2 diabetes currently revolves around weight loss and exercise to address the metabolic syndrome, rather than glucose control alone.
What this means for you practically: if you have type 2 diabetes and you’ve been working hard on your HbA1c while nothing else has changed, you may have been focusing on the lever with the smaller effect. That’s not a reason to stop — it’s a reason to widen the approach.
The Full List of What Influences Progression
Documented risk factors for developing and progressing neuropathy in diabetes include:
Smoking. Consistently identified, and one of the more modifiable items on the list.
Body weight.
Duration of diabetes — not modifiable, but useful context.
Glycemic control — with the caveat above about the size of the effect in type 2.
High blood pressure.
Abnormal blood lipids. Dyslipidemia appears repeatedly, and analyses have found that improvements in both HbA1c and triglycerides were associated with measurable improvement in nerve conduction.
The presence of diabetic retinopathy, which tends to track with neuropathy.
Notice how many of those are cardiovascular and metabolic rather than purely glucose-related. That’s the point.
And beyond diabetes: if your neuropathy has another cause — B12 deficiency, thyroid disease, alcohol, a medication, or something else — then addressing that cause is the most powerful lever available, and considerably more so than anything on this page. Whether that’s been properly investigated is a conversation worth having with your physician.
The Finding That Should Give You Some Hope
Here’s the part I most want people to know.
The small nerve fibers — the ones responsible for burning pain and temperature sensation — can be measured directly by counting nerve fiber density in a small skin sample.
Studies using that measure have reported improvement in nerve fiber density with diet and exercise in people with prediabetes. Research from a type 2 diabetes exercise study has similarly reported nerve fiber regeneration in participants engaged in an exercise program.
That’s not symptom management. That’s a measurable change in the nerves themselves.
Two important caveats, because I want this stated accurately rather than enthusiastically.
First, this evidence is strongest in prediabetes and early disease — which is one of several reasons early diagnosis matters so much. Established, long-standing neuropathy is generally described as largely irreversible, and there is currently no approved therapy that reverses it.
Second, these are specific research findings, not a promise about your individual outcome.
But it does establish something important: the nerves are not simply on a one-way trajectory regardless of what you do. What you do influences it.
What About the Pain?
Worth separating out, because the two questions get conflated.
The American Diabetes Association’s position statement notes that no compelling evidence supports glycemic control or lifestyle management as treatments for neuropathic pain specifically — which leaves medication as the route for that.
So the honest framing is: lifestyle measures are aimed at the progression of the nerve damage. Pain management is a separate conversation, with its own evidence base, and belongs with your physician.
Both matter. They’re just different problems.
Where Physical Therapy Fits
Being clear about scope: we don’t manage your diabetes, prescribe your medication, or order your blood work.
What we do contribute:
Exercise, delivered properly. Given that exercise and weight management are the interventions the evidence points toward for type 2 neuropathy, getting a program that’s actually appropriate, progressed and sustainable matters — and that’s harder than it sounds when you have reduced sensation, balance concerns, and possibly foot risk.
Balance and fall prevention, which is a separate and pressing issue.
Strength, which compensates for the sensory information you’re no longer receiving.
Gait, which changes when feet stop reporting accurately.
Foot protection education, which becomes essential when you can’t feel damage occurring.
And safe progression. A person with reduced sensation, possible foot ulcer risk, and potential cardiovascular considerations needs an exercise program designed around those factors rather than a generic handout.
What to Take to Your Physician
If your goal is slowing progression, these are the conversations worth having:
“Beyond my HbA1c, what else should we be addressing?” Blood pressure, lipids, weight, smoking.
“Has the cause been fully investigated?” Particularly if you don’t have diabetes, or if your neuropathy seems out of proportion to it.
“Should anything else be checked?” B12 — including methylmalonic acid if the B12 result is borderline — thyroid, and kidney function.
“Could any of my medications be contributing?”
“How often should my feet be checked?”
Seek Medical Attention Promptly For
Symptoms that are progressing rapidly, over weeks rather than months or years. New or worsening weakness. Symptoms that began suddenly. Any new wound, blister, or ulcer on a foot with reduced sensation. Signs of infection. Any fall.
Emergency care for sudden numbness on one side of the body, particularly with facial droop, arm weakness, or difficulty speaking.
The Realistic Summary
Neuropathy usually progresses slowly. How much it progresses is influenced by factors you can affect — and in type 2 diabetes, those factors are broader than glucose alone.
There’s evidence that nerve fiber density can improve with diet and exercise in earlier disease. There’s no evidence that established neuropathy reverses.
Which means the honest goal for most people is: slow the progression, treat the pain properly, and aggressively address the things that determine your day-to-day life — balance, strength, walking, and keeping your feet intact.
That last group responds to training regardless of what the nerves do. It’s also the part that determines whether you stay independent.
Let’s Work on What You Can Change
Penrose Physical Therapy offers a free discovery visit at no cost and no obligation. You’ll get an assessment of your balance, strength, gait, and fall risk, a program built for someone working with reduced sensation, and clear guidance on what’s worth raising with your physician.
We work alongside your medical team, not instead of them.
