Peripheral Neuropathy: Why Your Feet or Hands Tingle, Burn, or Go Numb

A creeping numbness in the toes, a burning or "pins and needles" feeling in the feet that is worse at night, or hands that tingle and lose their grip — these are the everyday faces of peripheral neuropathy. It is extremely common, especially in people with diabetes, and while it can be uncomfortable and frustrating, understanding it is the first step to managing it well and protecting yourself from its complications. This guide explains what peripheral neuropathy is, what causes it, how it is managed, and where newer regenerative approaches honestly stand.

What is peripheral neuropathy?

Your peripheral nerves are the body's wiring outside the brain and spinal cord — the cables that carry sensation in from your skin, send movement signals out to your muscles, and quietly run automatic functions like blood pressure and digestion. Peripheral neuropathy is damage to these nerves. Depending on which nerves are affected, it can cause altered sensation, weakness, or problems with those automatic functions — and because the longest nerves are usually hit first, it typically starts in the feet.

What causes it?

There is a long list of possible causes, but one dominates:

• Diabetes is by far the most common cause. Over time, high blood glucose damages nerves, and about one-third to one-half of people with diabetes develop peripheral neuropathy ¹.
• Heavy alcohol use and vitamin B12 deficiency, both of which directly affect nerve health.
• Chemotherapy and some other medications.
• Autoimmune conditions, infections, and kidney or thyroid disease.
• Injury or compression of a nerve.
• Inherited conditions — and, in a meaningful share of cases, no cause is ever found (idiopathic).

Pinning down the cause matters, because treating it is often the most effective thing that can be done.

Are there different types?

"Neuropathy" is an umbrella term, and the pattern matters:

• Polyneuropathy affects many nerves at once, symmetrically — the common "stocking and glove" type seen in diabetes, starting in both feet.
• Mononeuropathy affects a single nerve, often from compression — carpal tunnel syndrome at the wrist is the most familiar example.
• Small-fibre neuropathy mainly hits the tiny nerves that carry pain and temperature, causing burning pain with relatively normal strength and reflexes.

Knowing which pattern is present helps point to the cause and the right tests.

What it feels like — and the tell-tale pattern

Symptoms depend on which type of nerve is affected, which is the key to recognising it:

The most familiar pattern is sensory: burning, tingling, or numbness that begins in the toes and feet and, over time, can spread up the legs and into the hands — the so-called "stocking and glove" distribution — often worst at night. Some people feel pain from the lightest touch; others gradually lose the ability to feel pain or temperature, which carries its own risks.

When should you get it checked?

Some situations deserve prompt attention rather than waiting:

• Any new numbness in the feet if you have diabetes, since reduced sensation can let small injuries go unnoticed.
• Rapidly spreading weakness or numbness, which needs urgent assessment.
• A wound, blister, or ulcer on a numb foot that you did not feel happen.

How is it diagnosed?

Diagnosis combines your symptoms and an examination — testing sensation, reflexes, and strength — with blood tests to hunt for a cause, such as glucose and HbA1c for diabetes, vitamin B12, and thyroid and kidney markers ². Nerve conduction studies are sometimes used to confirm and characterise the neuropathy. The emphasis on finding a cause is deliberate, because the cause shapes the treatment.

How is peripheral neuropathy managed?

Management runs on three tracks at once:

• Treat the underlying cause. This is the most important step. In diabetes, keeping blood glucose well controlled can slow the progression of nerve damage ¹; correcting a B12 deficiency or reducing alcohol can likewise help.
• Relieve the symptoms. Nerve pain often does not respond to ordinary painkillers, and specific medicines are used instead — chosen and adjusted by a clinician.
• Protect numb feet. When the feet cannot feel properly, daily foot checks, well-fitting footwear, and regular podiatry care become genuinely important, because an unnoticed blister or cut can turn into a serious wound ¹.

Physiotherapy and balance work add support where weakness or unsteadiness is part of the picture.

Where do regenerative approaches fit?

Peripheral neuropathy is one of the conditions where stem-cell "cures" are most aggressively advertised, so it deserves a clear, honest answer — which we give in detail in our companion guide, can damaged nerves repair themselves?. In short: there is no established stem-cell treatment for peripheral neuropathy, and the evidence remains early. We explain the wider field, limits included, in our overview of regenerative medicine.

Can you protect your nerves?

You cannot prevent every neuropathy, but you can lower the risk and slow progression:

• Keep blood sugar well controlled if you have diabetes — the single most impactful step.
• Limit alcohol and keep your nutrition (including B12) in good order.
• Care for your feet daily, especially if sensation is reduced.
• Manage related conditions such as thyroid and kidney disease.

What we see at the clinic

The most important conversation we have with people who have numb feet is about protection — checking the feet every day, because the danger of numbness is not the numbness itself but the injuries it hides. We are also honest that controlling the underlying cause does more than any add-on therapy, and that the stem-cell "cures" marketed for neuropathy are not supported by good evidence. Where someone is curious about regenerative options, we assess first and explain the limits plainly.

Common questions

Will my neuropathy keep getting worse? Not necessarily — treating the cause, especially controlling blood sugar in diabetes, can slow or stabilise it, though established nerve damage may not fully reverse.

Is the numbness permanent? It depends on the cause and how early it is addressed. Some neuropathies improve when the cause is treated; others are more lasting, which is why protecting numb areas matters.

Can stem cells cure neuropathy? There is no proven stem-cell cure for neuropathy. The research is mostly in animal models, and human evidence is early — we cover this honestly in our nerve repair guide.

Do supplements help? Correcting a genuine deficiency (such as B12) helps; beyond that, most supplements marketed for neuropathy have limited evidence. Discuss any with your clinician.

Why do my feet need such careful attention? Because numb feet can be injured without you feeling it, and a small unnoticed wound can become a serious one — daily checks and good foot care prevent that.

Key takeaway

Peripheral neuropathy is common and most often linked to diabetes, and the priorities are clear: find and treat the cause, control blood sugar, relieve the symptoms, and protect numb feet from unnoticed injury. Treat stem-cell "cures" with real caution — and see our honest look at whether damaged nerves can actually repair themselves.