⚡ Men's Health

Diabetic Neuropathy

Nerve damage from diabetes — symptoms, types, and management.

Diabetic neuropathy — nerve damage caused by chronically elevated blood sugar — affects approximately 50% of people with diabetes over time. It is one of the most common diabetes complications and contributes directly to foot ulcers, falls, sexual dysfunction, and poor quality of life. Early recognition and blood sugar control can prevent it from progressing.

Signs and Symptoms

✓ Tingling or "pins and needles" in the feet and hands

✓ Burning or shooting pain, often worse at night

✓ Numbness — reduced ability to feel temperature, pain, or touch

✓ Extreme sensitivity — even light bedsheet touch causing pain (allodynia)

✓ Muscle weakness in the feet and hands

✓ Loss of balance and increased risk of falls

✓ Dizziness on standing (autonomic neuropathy)

✓ Nausea, vomiting, bloating, constipation or diarrhoea (autonomic)

✓ Bladder problems — incomplete emptying, recurrent UTIs

✓ Erectile dysfunction in men (autonomic neuropathy)

Risk Factors

Poor blood sugar control — the primary driver of nerve damage
Longer duration of diabetes
High blood pressure
High cholesterol and triglycerides
Smoking — reduces nerve blood supply
Alcohol use — independently damages peripheral nerves
Vitamin B12 deficiency — particularly relevant if taking metformin long-term

When to Seek Help

SoonTingling, burning, or numbness in feet or hands — early assessment allows treatment that slows progression.

SoonPain at night from feet or legs significantly affecting sleep — effective treatments are available.

SoonDizziness on standing, frequent falls, or new bladder or bowel problems — autonomic neuropathy needs assessment.

RoutineAnnual nerve function testing as part of diabetes review — even without symptoms, because neuropathy can be silent.

Tests & Diagnosis

🧪 Monofilament Sensation Test

Simple bedside test for protective sensation in the feet — the most important screening test for foot risk.

🧪 Vibration Perception (Tuning Fork)

Detects large-fibre nerve damage — assessed at the big toe. Loss of vibration sense significantly increases fall risk.

🧪 Nerve Conduction Studies (NCS)

More detailed assessment of nerve function — used when the diagnosis is uncertain or to characterise the type of neuropathy.

🧪 HbA1c

The most important modifiable factor — optimising blood sugar slows nerve damage progression.

🧪 Vitamin B12 Level

Metformin reduces B12 absorption over time. B12 deficiency causes its own neuropathy — supplementation corrects this and prevents further damage.

🧪 Postural Blood Pressure

A drop in blood pressure on standing of more than 20 mmHg systolic suggests autonomic neuropathy.

Treatment Options

Blood Sugar Optimisation — the Most Important Treatment

Intensive blood sugar control slows the progression of neuropathy and can partially reverse early damage. There is no substitute. Target HbA1c below 53 mmol/mol (7%) in most people.

Pain Management

Neuropathic pain (burning, shooting pain from nerve damage) responds to specific medications — pregabalin, gabapentin, duloxetine, or amitriptyline. Regular NSAIDs and paracetamol are largely ineffective for neuropathic pain.

Vitamin B12 Supplementation

Essential for metformin users with low B12 or B12-deficiency neuropathy. Oral B12 at high doses or intramuscular injections depending on severity.

Foot Protection and Monitoring

Neuropathy removes protective pain sensation — see the diabetic foot care guide for the critical prevention strategies.

Physiotherapy and Balance Training

Reduces fall risk, maintains strength and coordination in affected muscles.

Frequently Asked Questions

Can diabetic neuropathy be reversed?

Early, mild neuropathy can improve with excellent blood sugar control. Established moderate-to-severe neuropathy cannot be fully reversed, but its progression can be slowed and pain managed effectively.

Is the tingling in my feet from diabetes?

Possibly — but other causes include B12 deficiency, alcohol excess, thyroid disease, and other nerve conditions. A proper assessment with blood tests and nerve testing identifies the cause, which guides treatment.

Will the pain go away?

Neuropathic pain fluctuates and often improves with blood sugar control and appropriate pain medication. Most people achieve significant relief with treatment, though some degree of chronic pain may persist.

Is erectile dysfunction from neuropathy treatable?

Yes. Autonomic neuropathy-related erectile dysfunction responds to PDE5 inhibitors (sildenafil/Viagra). Discuss openly with your doctor — it is a medical issue, not a cause for shame. See the Erectile Dysfunction guide.

Does walking help or worsen nerve pain?

Regular walking improves nerve blood supply and reduces neuropathy progression. Short-term increase in foot soreness after walking is expected, but foot protection is essential — always wear appropriate footwear.