Our nerves carry messages between the brain, spinal cord and the rest of the body, rather like electrical wires. Damage to nerves outside the brain and spinal cord is called peripheral neuropathy. It can cause burning, tingling, pain or reduced sensation, often beginning in the feet.
Diabetes is a common cause, but not every numb or painful foot is due to diabetes. Vitamin deficiencies, pressure on a nerve and other conditions may need different treatment. This guide explains what to notice, how doctors investigate it, and how to protect your feet.
Symptoms: when should you suspect neuropathy?
- Pins and needles, prickling or a crawling sensation in the feet or hands.
- Burning soles or shooting, electric-shock-like pain, sometimes worse at night.
- Numbness: not noticing a small stone in a shoe, an injury or a slipper coming off.
- Pain from light touch, such as a bedsheet resting on the feet.
- Poor balance or weakness, which should be assessed rather than dismissed as ageing.
Diabetic peripheral neuropathy commonly affects both feet. Symptoms on only one side, rapid progression or prominent weakness need assessment for other causes. Some people have loss of sensation without pain, so feeling comfortable does not prove that the feet are protected.
When to seek urgent medical help
Do not wait for a routine appointment for a new foot wound, spreading redness, pus, blackened skin, or a hot, swollen foot—especially if you have diabetes. Fever or feeling very unwell increases urgency. Avoid putting pressure on an injured or suddenly swollen foot until assessed.
Sudden weakness on one side, facial drooping or difficulty speaking requires emergency care. Rapidly worsening weakness, trouble breathing, or new bladder/bowel control problems with leg weakness also needs urgent assessment.
What causes nerve damage?
Long-term high blood glucose can injure nerves. Other possibilities include vitamin B12 deficiency, thyroid or kidney disease, alcohol-related damage, certain medicines and nerve compression. Tell your doctor about all prescriptions and supplements; do not stop a prescribed medicine on your own.
Tests: blood tests, examination, NCV and EMG
The first step is a discussion of the symptoms and an examination. Bring your medication list, recent glucose reports and details of when symptoms started. The clinician may check strength, reflexes, balance, foot pulses, vibration and protective sensation using a monofilament.
Blood tests are selected according to the clinical picture. They may include glucose and HbA1c, vitamin B12, thyroid and kidney tests. Not everyone needs every test.
Nerve conduction studies (NCS/NCV) measure how signals travel through nerves. Electromyography (EMG) assesses electrical activity in muscles. These are useful when the diagnosis is uncertain, symptoms are unusual or weakness needs investigation; they are not automatically the first or most important test for everyone with typical diabetic neuropathy. Small-fibre nerve problems can also occur despite normal nerve conduction results. Your clinician decides whether specialist testing is needed.
Treatment: address the cause and the symptoms
1. Treat the underlying condition
For diabetes, agree on individual glucose targets and a sustainable plan for medicines, meals and activity. Avoid attempts to rapidly force glucose down without supervision. Blood pressure, cholesterol, tobacco use and kidney health also matter. Pain treatment can still help while glucose management is being improved.
If B12 deficiency is confirmed, the doctor chooses appropriate replacement and investigates why it occurred. Recovery depends on the cause and duration of damage; no tablet can promise complete nerve regeneration.
2. Medicines for nerve pain
A clinician may consider pregabalin, gabapentin, duloxetine or amitriptyline, and sometimes alternatives such as nortriptyline. Choice depends on symptoms, age, kidney function, other conditions and existing medicines. These medicines can reduce pain; they do not reliably restore lost sensation. Paracetamol or ibuprofen often provide limited relief for neuropathic pain.
Treatment usually starts cautiously and is reviewed for benefit and unwanted effects. Do not copy another person's prescription, combine medicines yourself or change the dose based on a video.
3. Do “nerve vitamins” and alpha-lipoic acid help?
Treat a demonstrated nutritional deficiency rather than assuming that everyone needs methylcobalamin, folic acid or a combination supplement. These products are not a universal nerve-repair treatment. A Cochrane review found that alpha-lipoic acid probably makes little or no difference to diabetic neuropathy symptoms after six months compared with placebo. Discuss supplements with your clinician, including what is already in other products.
Managing medicine side effects safely
| Problem | Practical next step |
|---|---|
| Sleepiness, dizziness or blurred vision | Avoid driving and machinery while affected. Discuss alcohol and other sedating medicines. Follow the prescribed timing; not every medicine should be taken only at bedtime. |
| Dry mouth | Small sips of water within any advised fluid limit, sugar-free gum and good oral care may help. |
| Constipation | Discuss fibre, fluids and suitable activity; persistent symptoms may need treatment. |
| Swelling or weight gain | Report new swelling or rapid weight gain. Breathlessness or severe swelling needs prompt assessment; do not just reduce salt and ignore it. |
Some side effects settle, but persistent or troublesome effects require review. Several nerve-pain medicines can cause withdrawal symptoms if stopped suddenly. Ask for a gradual reduction plan when changing or stopping treatment; pain returning does not mean it will necessarily become “twice as bad.”
Daily foot care when sensation is reduced
Inspect the feet each day, including the soles and between the toes. Use a mirror or ask for help. Wash gently with lukewarm water, check the temperature safely and dry carefully. Do not soak the feet or use heating pads and hot-water bottles.
Wear protective, well-fitting footwear even indoors and check inside shoes before putting them on. Do not cut corns or calluses yourself. Arrange regular professional foot checks, with more frequent review if you have previous ulcers or other risk factors. See our diabetic foot ulcer and foot-care guide.
Watch Dr. Pratyush Kumar’s diabetes videos
These Hindi videos provide background on diabetes care, a common part of neuropathy management. They complement the article and do not replace an individual examination.
Watch the diabetes video on YouTube or explore Dr. Pratyush Kumar’s diabetes video collection.
Frequently asked questions
Does burning in the feet always mean diabetes?
No. Diabetes is one possibility, but vitamin deficiency, nerve compression and other conditions can cause similar symptoms. An examination helps choose the right tests.
Does everyone with neuropathy need an NCV test?
No. Typical diabetic neuropathy is often assessed clinically. NCV/EMG is more useful when the diagnosis is uncertain, symptoms are atypical or weakness is present.
Can neuropathy be cured completely?
Some treatable causes improve, particularly when found early. Long-standing damage may persist. Treatment aims to address the cause, reduce symptoms and prevent injuries; improvement varies between people.
Can I stop the medicine when pain improves?
Discuss this with the prescriber. Some medicines need gradual tapering, and pain relief does not necessarily mean that protective sensation has returned.
Neuropathy assessment in Patna
Persistent burning, tingling or numbness deserves a clinical assessment. Learn about diabetes care with Dr. Pratyush Kumar, general physician consultations, or request an appointment. Bring your current medicines and previous reports.
References
- NIDDK: Peripheral neuropathy
- NHS: Peripheral neuropathy—treatment
- NHS: Peripheral neuropathy—diagnosis
- Cochrane: Alpha-lipoic acid for diabetic peripheral neuropathy
This article provides general education. Diagnosis and treatment should be tailored to you by a qualified clinician.
This article is for health education and does not replace an individual medical consultation. Symptoms, test results, medicines, and treatment decisions should be discussed with a qualified clinician.
Seek urgent medical care for severe breathing difficulty, chest pain, confusion, fainting, uncontrolled bleeding, severe dehydration, or rapidly worsening symptoms.