Peripheral Neuropathy

Condition: Peripheral Neuropathy

Brief Overview: Peripheral neuropathy refers to a large group of disorders caused by damage to the peripheral nervous system, the network of nerves that carries information between the brain and spinal cord and the rest of the body.

Peripheral nerves may carry:

Sensory signals, such as pain, temperature, touch, and vibration.
Motor signals, which control voluntary muscle movement.
Autonomic signals, which help regulate automatic functions such as blood pressure, digestion, sweating, bladder function, and heart rate.

More than 100 types of peripheral neuropathy have been identified. Symptoms depend on which nerves and nerve fibers are affected.

Peripheral neuropathy may be:

Focal/mononeuropathy: One nerve is affected, such as carpal tunnel syndrome or meralgia paresthetica.
Multifocal: Multiple individual nerves in different areas are affected.
Generalized/polyneuropathy: Many nerves are affected, commonly in a symmetric pattern beginning in the feet.
Predominantly sensory, motor, autonomic, or mixed.

Most generalized neuropathies are length-dependent, meaning symptoms begin in the feet because those nerve fibers are the longest and may later progress upward or involve the hands.

Care Coordinator Note: Peripheral neuropathy is an umbrella diagnosis. The underlying cause and pattern matter. A patient's established neuropathy should not automatically be used to explain every new neurological symptom.

Peripheral Neuropathy vs. Polyneuropathy

These terms overlap but are not identical.

Peripheral neuropathy is the broader category and can involve:

One peripheral nerve.
Several separate nerves.
Many nerves.
Sensory, motor, and/or autonomic fibers.

Polyneuropathy specifically describes disease involving multiple peripheral nerves, often in a bilateral, length-dependent "stocking-glove" distribution.

The separate Polyneuropathy resource may be used when that is the patient's documented diagnosis.

Prevalence: According to Open Evidence, “Peripheral neuropathy affects roughly 1–3% of the general adult population worldwide, rising sharply with age to about 6–13% in those over 60–80 years. The most widely cited figure is approximately 1% of adults worldwide, increasing to 6–10% in people older than 60.”

Etiology: According to Open Evidence, “Peripheral neuropathy has more than 200 identifiable causes, but diabetes is the single most common, accounting for over 50% of cases in Western populations; roughly one-quarter of cases remain idiopathic after full evaluation.”

Peripheral nerve damage may involve:

The axon, which carries the nerve signal.
The myelin sheath, which insulates the nerve.
Small sensory/autonomic fibers.
Large sensory or motor fibers.
Multiple components simultaneously.

Potential causes include:

Diabetes mellitus.
Nerve compression or entrapment.
Physical trauma.
Chronic kidney disease.
Liver disease.
Vitamin B12 deficiency.
Excess vitamin B6 exposure.
Other nutritional deficiencies.
Excessive alcohol exposure.
Hypothyroidism.
Chemotherapy.
Other neurotoxic medications.
Autoimmune or inflammatory disorders.
Vasculitis.
Amyloidosis.
Monoclonal gammopathy.
Cancer or paraneoplastic disorders.
Certain infections.
Heavy-metal or toxin exposure.
Hereditary neuropathies.
Idiopathic neuropathy.

Peripheral neuropathy may also occur after radiation or certain medical procedures.

Risk Factors: Risk factors depend on the underlying cause and may include:

Increasing age.
Diabetes or prediabetes.
Chronic kidney disease.
Excessive alcohol consumption.
Poor nutrition or malabsorption.
History of bariatric or gastrointestinal surgery.
Chemotherapy or radiation.
Exposure to neurotoxic medications.
Autoimmune disease.
Cancer.
Family history of hereditary neuropathy.
Repetitive pressure or compression of a peripheral nerve.
Previous trauma or surgery.
Occupational or environmental toxin exposure.

Commonly Associated Conditions:

Diabetes mellitus.
Chronic kidney disease.
Hypothyroidism.
Vitamin B12 deficiency.
Peripheral arterial disease.
Alcohol-use disorder.
Monoclonal gammopathy.
Amyloidosis.
Autoimmune disease.
Cancer or chemotherapy exposure.
Carpal tunnel syndrome.
Other nerve-entrapment syndromes.
Hereditary neuropathies.
Chronic neuropathic pain.
Falls and gait impairment.
Depression or sleep disturbance related to chronic symptoms.

Diabetes-Specific Consideration: Diabetic neuropathy is a diagnosis of exclusion. People with diabetes may also develop other potentially treatable neuropathies, so new or atypical symptoms should not automatically be attributed to diabetes.

Common Medications:

Gabapentin, pregabalin
SNRIs – duloxetine, venlafaxine
Tricyclic antidepressants – amitriptyline, nortriptyline
Topicals – lidocaine, capsaicin

⚠️ Key Points for Care Coordinators & Patients

Do not advise patients to start, stop, increase, decrease, or change the timing of any prescription medication, OTC medication, vitamin, or supplement.
Ask whether neuropathy medications are being taken exactly as prescribed.
Ask about dizziness, sleepiness, confusion, swelling, poor balance, or falls.
Ask about kidney disease when gabapentin or pregabalin is being used.
Review whether the patient is also taking opioids, benzodiazepines, sleep medication, or other sedating medications.
Ask about all vitamin supplements, especially products containing vitamin B6.
Pain medication may reduce symptoms but does not necessarily repair the underlying nerve damage.
New or worsening neurological symptoms should be reported to the neurologist.
Acute, asymmetric, rapidly progressive, predominantly motor, or significant autonomic symptoms are not typical of uncomplicated chronic distal neuropathy and warrant prompt evaluation.

Common Labs, Imaging, and Tests:

Labs: CBC, CMP, fasting glucose, Hgb A1c if indicated, TSH, vitamin B12, serum protein electrophoresis with immunofixation
- Additional labs may be indicated
EMG, nerve conduction studies
Small-fiber neuropathy testing – skin biopsy, autonomic testing, quantitative sensory testing
MRI, CT may be indicated in some cases
Genetic testing may be indicated

Common Symptoms: Symptoms depend on which peripheral nerve fibers are affected.

Sensory Symptoms

Numbness.
Tingling.
Pins-and-needles sensation.
Burning.
Shooting pain.
Electric-like pain.
Stabbing pain.
Pain from normally nonpainful touch.
Reduced ability to feel temperature.
Reduced ability to feel pain.
Reduced vibration sensation.
Reduced awareness of where the feet or limbs are positioned.

Loss of position sense can contribute substantially to poor balance and falls.

Motor Symptoms

Weakness.
Muscle cramps.
Muscle twitching/fasciculations.
Muscle wasting.
Foot drop.
Difficulty climbing stairs.
Difficulty rising from a chair.
Difficulty gripping objects.
Difficulty with buttons or other fine-motor tasks.

Autonomic Symptoms

Peripheral autonomic nerve dysfunction may cause:

Dizziness or lightheadedness when standing.
Orthostatic hypotension.
Fainting or near-fainting.
Abnormal sweating.
Heat intolerance.
Constipation.
Diarrhea.
Gastroparesis or digestive symptoms.
Urinary dysfunction.
Sexual dysfunction.
Abnormal heart-rate responses.

Focal Neuropathy Symptoms

When only one nerve is affected, symptoms may occur in a specific anatomical distribution.

Examples include:

Carpal tunnel syndrome

Numbness or tingling in the thumb, index, middle, and part of the ring finger.
Hand weakness.
Dropping objects.

Ulnar neuropathy

Numbness or tingling in the little finger and part of the ring finger.
Hand weakness.

Meralgia paresthetica

Burning, tingling, pain, or numbness along the outer thigh.

Fibular/peroneal nerve neuropathy

Foot drop.
Numbness of the lower leg or top of the foot.

A focal neuropathy may require a different evaluation and treatment plan than generalized polyneuropathy.

Common Treatments:

Medications (see above)
Treatment of any underlying cause
Physical, occupational therapy
Orthotics, assistive devices
Surgery may be indicated in some cases

Physical Findings:

Reduced sensation.
Reduced temperature or pinprick sensation.
Reduced vibration or position sense.
Reduced or absent reflexes.
Distal muscle weakness.
Muscle wasting.
Fasciculations.
Foot drop.
Abnormal gait.
Impaired balance.
Foot deformity.
Calluses or wounds.
Findings localized to one specific peripheral nerve.

Potential Complications and Contraindications:

Falls.
Fall-related injury.
Burns or cuts that are not initially felt.
Foot wounds and ulcers.
Infection.
Amputation in high-risk patients.
Foot drop.
Progressive weakness.
Loss of mobility.
Chronic neuropathic pain.
Sleep disturbance.
Reduced independence.
Autonomic dysfunction.
Medication-related sedation or falls.

In people with diabetes, sensory loss is a major contributor to foot ulceration and amputation risk. Up to half of diabetic peripheral neuropathy cases may initially be asymptomatic.

Foot and Skin Safety

Patients with decreased sensation may not recognize significant tissue injury.

Encourage patients to:

Inspect numb feet or other high-risk areas daily.
Check for cuts, blisters, redness, swelling, drainage, or sores.
Use a mirror or caregiver help for hard-to-see areas.
Check inside shoes before putting them on.
Wear properly fitting shoes and socks.
Avoid walking barefoot.
Avoid placing heating pads or hot-water bottles directly against numb skin.
Check water temperature carefully before bathing.
Report wounds promptly.

For people with diabetes, comprehensive foot assessment should occur at least annually, with more frequent inspection in patients who have loss of protective sensation, previous ulceration, amputation, peripheral artery disease, or other high-risk findings.

Open ulceration or unexplained foot swelling, redness, or increased warmth warrants prompt clinical assessment.

General Health and Lifestyle Guidance:

Take medications exactly as prescribed.
Maintain neurology and primary-care follow-up.
Manage diabetes according to the prescribed treatment plan when applicable.
Inspect numb feet or skin regularly.
Wear properly fitting footwear.
Avoid walking barefoot when foot sensation is impaired.
Avoid direct heat on areas of reduced sensation.
Use prescribed cane, walker, brace, or other assistive device.
Reduce fall hazards in the home.
Maintain appropriate physical activity according to healthcare-provider recommendations.
Avoid excessive alcohol exposure.
Maintain adequate nutrition.
Review vitamins and supplements with the healthcare provider.
Avoid high-dose vitamin B6 unless specifically prescribed.
Report new wounds or skin changes.
Report new or changing neurological symptoms.

Suggested Questions to Ask Patients:

Neuropathy Symptoms

Have your numbness, tingling, pain, or other nerve symptoms changed since our last call?
Where are you experiencing symptoms?
Is one side affected or both?
Do symptoms involve one specific area or several areas?
Have symptoms spread?
Do you have burning, shooting, or electric-like pain?
Are you having difficulty feeling hot or cold?
Does light touch cause pain?

Strength and Function

Have you noticed new or worsening weakness?
Are you dropping things?
Are buttons or other fine-motor activities becoming more difficult?
Are you having difficulty standing from a chair?
Is your foot dragging?
Are you having difficulty climbing stairs?
Are symptoms interfering with bathing, dressing, cooking, or other daily activities?

Balance and Falls

Are you feeling more unsteady?
Have you fallen or almost fallen?
Is walking more difficult in the dark?
Is walking on uneven ground difficult?
Are you using your prescribed cane, walker, or brace?
Do you feel safe walking around your home?

Autonomic Symptoms

Do you feel dizzy or lightheaded when standing?
Have you fainted or nearly fainted?
Are you having new constipation or diarrhea?
Any significant changes in sweating?
Any urinary difficulty or other new bladder symptoms?

Foot and Skin Safety

Are you checking your feet regularly?
Any cuts, blisters, redness, sores, swelling, warmth, or drainage?
Are you able to inspect the bottoms of your feet?
Do you need caregiver assistance?
Are your shoes fitting comfortably?
When was your last foot or podiatry examination?

Medication Assessment

What medication are you taking for nerve symptoms?
Is it helping?
Are you taking it exactly as prescribed?
Are you experiencing dizziness or unusual sleepiness?
Any confusion?
Any swelling?
Have you fallen since the medication was started or changed?
Are you taking an opioid, benzodiazepine, sleep medicine, or another sedating medication?
Are you taking any vitamins or supplements marketed for nerve health?
Have any medications recently changed?

Underlying Cause and Follow-Up

Do you know what your healthcare provider believes is causing the neuropathy?
Do you have diabetes?
Kidney disease?
History of chemotherapy?
Vitamin deficiency?
Have you had EMG or nerve-conduction testing?
When did you last see your neurologist?
When is your next neurology appointment?
Has your neurologist been informed of your current symptoms?

⚠️ Standard Neurology Symptom-Change Guidance

For any new neurologic symptom or change/worsening of an existing neurologic symptom, advise the patient or caregiver to contact the patient's neurologist to report the change.

Examples include new or worsening:

Numbness.
Tingling.
Neuropathic pain.
Weakness.
Foot drop.
Difficulty using the hands.
Balance or walking difficulty.
Falls.
Autonomic symptoms.
Other neurological symptoms.

Care coordinators should not independently determine that a new or worsening neurological symptom is simply expected progression of the patient's established peripheral neuropathy.

If symptoms meet criteria for urgent or emergency evaluation, do not delay appropriate care while waiting for the neurologist to respond. Follow organizational escalation protocols and direct the patient to the appropriate level of urgent or emergency evaluation.

⚠️ Telephone Escalation Guidance

Typical chronic distal neuropathy often develops gradually.

Acute onset, rapid progression, marked asymmetry, predominantly motor weakness, or significant autonomic dysfunction should prompt more urgent neurological evaluation.

Emergency — Follow 911/Emergency Protocol

Follow organizational emergency protocol for:

Sudden facial droop.
Sudden one-sided numbness or weakness.
Sudden speech or vision change.
Sudden severe loss of coordination.
New inability to walk.
Rapidly progressive generalized weakness with breathing difficulty.
Rapidly progressive weakness with significant swallowing difficulty.
Severe breathing difficulty.
Loss of consciousness.
Severe medication-related respiratory depression or inability to awaken normally.
Another suspected acute neurological emergency.

Do not assume sudden neurological symptoms are caused by chronic peripheral neuropathy.

Rapidly Progressive Weakness

New weakness progressing over hours to days, especially if moving upward from the legs or accompanied by:

Difficulty walking.
Facial weakness.
Difficulty swallowing.
Shortness of breath.
Abnormal heart rate or blood-pressure symptoms.

requires urgent evaluation for conditions such as Guillain-Barré syndrome or another acute neuropathy. GBS can cause respiratory failure and significant autonomic instability.

Prompt/Same-Day Clinical or Neurology Escalation

Prompt evaluation is appropriate for:

New or rapidly worsening weakness.
New foot drop.
Rapidly spreading numbness or weakness.
Markedly asymmetric symptoms.
Significant new walking difficulty.
Recurrent falls.
New significant autonomic symptoms such as recurrent fainting.
Significant medication adverse effects.
New neurological symptoms following chemotherapy or another medication change.
New foot wound, ulcer, unexplained redness, warmth, swelling, or drainage.
Significant decline in ability to complete activities of daily living.

If symptoms meet criteria for emergency evaluation, follow emergency protocol rather than waiting for routine neurology follow-up.

Suggested Talking Points:

Explaining peripheral neuropathy

"Peripheral neuropathy means that one or more of the nerves outside the brain and spinal cord aren't working normally. Depending on which nerves are affected, it can cause numbness, tingling, pain, weakness, balance problems, or even changes in things like blood pressure or digestion."

Explaining different types

"Peripheral neuropathy can affect one nerve, several nerves, or many nerves. That's why the symptoms can look very different from one person to another."

Discussing numbness

"Loss of feeling can sometimes be more important than pain because you may not notice an injury. Check numb areas—especially your feet—regularly even if they don't hurt."

Discussing symptom changes

"If your symptoms suddenly change, become much worse, or you develop new weakness or trouble walking, your neurologist needs to know. We don't want to assume every new symptom is from your usual neuropathy."

Discussing pain medication

"Nerve-pain medicine may decrease burning or shooting pain, but it doesn't necessarily fix the nerve damage itself. We also want to make sure the underlying cause is being treated when possible."

Discussing falls

"Peripheral neuropathy can make it harder to feel where your feet are, which can affect balance. Falls and near-falls are important to report."

Discussing medication safety

"Some nerve-pain medications can cause dizziness or sleepiness. If you're becoming more unsteady, confused, or unusually sleepy after a medication change, let your healthcare provider know."

Suggested SMART Goal Examples

1. Daily Foot Inspection
"I will inspect both feet for cuts, blisters, redness, swelling, or sores every evening for the next 30 days."

2. Caregiver Foot Inspection
"My caregiver will help me inspect the bottoms of my feet at least 5 days per week for the next month because I cannot safely see or reach them."

3. Medication Adherence
"I will take my neuropathy medication exactly as prescribed for the next 30 days and report side effects to my healthcare provider."

4. Symptom Tracking
"I will record any changes in numbness, tingling, pain, or weakness at least 3 days per week for the next 4 weeks."

5. Fall Prevention
"I will remove loose rugs and clutter from my main walking areas within the next 7 days."

6. Assistive Device Use
"I will use my prescribed cane, walker, or brace during the activities recommended by my healthcare team for the next 30 days."

7. Protective Footwear
"I will wear properly fitting protective footwear whenever I am walking for the next 30 days."

8. Neurology Follow-Up
"I will schedule and attend my recommended neurology appointment within the next ___ days."

9. Physical Therapy
"I will complete the balance or strengthening exercises recommended by my physical therapist ___ days per week for the next 4 weeks."

10. Podiatry Follow-Up
When recommended:
"I will schedule my recommended podiatry or foot-care appointment by ___."

11. Home Safety
"I will place night-lights along my main nighttime walking route within the next 7 days to reduce my fall risk."

12. Diabetes Management
For a patient with diabetes:
"I will follow my prescribed diabetes treatment and glucose-monitoring plan for the next 30 days and bring my readings to my next healthcare appointment."

Sources:

Open Evidence
Peripheral Neuropathy. The Journal of the American Medical Association. 2026. Walter K.RecentClinical Reference
Peripheral Neuropathy: A Review. The Journal of the American Medical Association. 2026. Mauermann ML, Staff NP.
https://my.clevelandclinic.org/health/diseases/14737-peripheral-neuropathy#what-is-peripheral-neuropathy
https://www.ninds.nih.gov/sites/default/files/2025-05/peripheral-neuropathy.pdf
National Institute of Neurological Disorders and Stroke — Peripheral Neuropathy, including types, causes, sensory/motor/autonomic symptoms, diagnosis, and treatment.
American Academy of Family Physicians — Peripheral Neuropathy: Evaluation and Differential Diagnosis, including prevalence, classification, laboratory evaluation, electrodiagnostic testing, imaging, and referral criteria.
American Diabetes Association — Standards of Care in Diabetes—2026: Retinopathy, Neuropathy, and Foot Care, including neuropathy screening, treatment, foot-care recommendations, and ulcer prevention.
U.S. Food and Drug Administration — gabapentin and pregabalin respiratory-depression safety warning, including increased risk in older adults and with other CNS depressants.
National Institute of Neurological Disorders and Stroke — Guillain-Barré Syndrome, including rapidly progressive weakness, respiratory failure, swallowing impairment, and autonomic dysfunction.
National Institute of Neurological Disorders and Stroke — Hereditary Neuropathies, including genetic testing, nerve-conduction studies, supportive treatment, and bracing.

⚠️ Medical Disclaimer

This resource is provided for educational and informational purposes only and is not intended to replace professional medical advice, diagnosis, or treatment. The information presented is general in nature and may not apply to every individual or health situation.

Individuals should consult their physician or other qualified healthcare professional for personalized medical advice, diagnosis, or treatment recommendations related to their specific health conditions and should not begin any new exercise program or change their diet or medications without consulting their healthcare professional.

Call 911 if you are experiencing a medical emergency.