What Is Neuropathic Pain?
Under normal circumstances, pain serves as a warning signal — alerting the brain to tissue damage so that the body can take protective action. In neuropathic pain, this signaling system is itself damaged or dysfunctional. The nerves may send pain signals to the brain even in the absence of ongoing tissue injury, or they may amplify normal sensations so that light touch, pressure, or temperature changes are perceived as painful.
Neuropathic pain can originate at any level of the nervous system. Peripheral neuropathic pain involves damage to the nerves outside the brain and spinal cord (the peripheral nervous system), while central neuropathic pain involves dysfunction within the brain or spinal cord itself. In many patients, neuropathic and musculoskeletal pain components coexist, requiring a comprehensive evaluation to develop an effective treatment strategy.
Common characteristics of neuropathic pain include burning or searing sensations, shooting or lancinating pain, numbness or tingling (paresthesias), heightened sensitivity to touch or temperature (allodynia and hyperalgesia), and pain that persists long after the original injury has healed. Neuropathic pain is often chronic and may not respond well to standard pain medications such as NSAIDs.
Common Neuropathic Pain Conditions
Diabetic Peripheral Neuropathy
Diabetes is one of the most common causes of peripheral neuropathy. Prolonged high blood sugar damages the small nerves, particularly in the feet and hands, leading to numbness, tingling, burning pain, and loss of sensation. Tight glycemic control is essential to slowing progression, while interventional and pharmacological treatments can help manage the pain.
Radiculopathy
Radiculopathy occurs when a spinal nerve root is compressed or irritated, most commonly by a herniated disc, bone spur, or spinal stenosis. When affecting the lower back (lumbar radiculopathy), it may produce sciatica — pain radiating down the leg. When affecting the neck (cervical radiculopathy), pain may radiate into the shoulder, arm, or hand. Radiculopathy often has both neuropathic and musculoskeletal components.
Complex Regional Pain Syndrome (CRPS)
CRPS is a chronic pain condition that typically develops after an injury, surgery, or immobilization and is characterized by pain that is disproportionate to the original injury. Symptoms may include intense burning pain, swelling, changes in skin color and temperature, sweating abnormalities, and impaired motor function. CRPS requires early recognition and aggressive, multidisciplinary treatment for the best outcomes.
Post-Surgical Nerve Pain
Nerve injury or entrapment during surgery can result in chronic neuropathic pain at or near the surgical site. This is a recognized complication of certain procedures, including hernia repair, thoracotomy, mastectomy, and joint replacement. Accurate diagnosis is critical to distinguish post-surgical neuropathic pain from other causes of post-operative discomfort.
Postherpetic Neuralgia
Following a shingles (herpes zoster) outbreak, some patients develop persistent burning or stabbing pain in the area where the rash occurred. This condition, called postherpetic neuralgia, results from damage to the peripheral nerves by the varicella-zoster virus and can persist for months or years after the rash resolves.
Occipital Neuralgia
This condition involves irritation or injury to the occipital nerves, which run from the upper spinal cord through the scalp. It produces sharp, shooting, or electric-shock-like pain in the back of the head, behind the ears, and sometimes into the eye area. Occipital neuralgia is an important consideration in the differential diagnosis of chronic headaches.
Peripheral Neuropathy (Other Causes)
Beyond diabetes, peripheral neuropathy can result from chemotherapy, alcohol use, vitamin deficiencies (particularly B12), autoimmune conditions, infections, and exposure to certain toxins. Treatment depends on identifying and addressing the underlying cause while managing neuropathic symptoms.
How Is Neuropathic Pain Diagnosed?
Diagnosing neuropathic pain requires a detailed history and neurological examination, with attention to the quality and distribution of pain, associated neurological symptoms (numbness, tingling, weakness), and any history of nerve injury, surgery, or systemic illness. Additional diagnostic tools may include electromyography (EMG) and nerve conduction studies, MRI or CT imaging of the spine or affected nerves, laboratory studies to assess for diabetes, vitamin deficiencies, or autoimmune conditions, and diagnostic nerve blocks to identify specific pain generators.
The distinction between neuropathic and nociceptive (tissue-based) pain is clinically important because these pain types respond to different treatments. Our evaluation is designed to determine the predominant pain mechanism driving your symptoms, which directly informs your treatment plan.
Treatment Options
Coastal Spine & Pain offers a range of targeted interventional therapies for neuropathic pain conditions:
Epidural Steroid Injections
For radiculopathy and other conditions involving spinal nerve root inflammation, epidural steroid injections deliver anti-inflammatory medication directly to the source of nerve irritation. These may be performed using an interlaminar, transforaminal, or caudal approach depending on the clinical situation.
Nerve Blocks
Targeted nerve blocks use local anesthetic (and sometimes corticosteroid) to interrupt pain signal transmission along specific peripheral nerves. Diagnostic nerve blocks also help confirm the identity of the pain-generating nerve. Common examples include occipital nerve blocks, intercostal nerve blocks, and peripheral nerve blocks of the upper and lower extremities.
Spinal Cord Stimulation (SCS)
For patients with chronic neuropathic pain that has not responded adequately to more conservative treatments, spinal cord stimulation may offer significant relief. SCS involves placing thin leads near the spinal cord that deliver mild electrical impulses to modulate pain signals before they reach the brain. It is FDA-approved for conditions including failed back surgery syndrome, CRPS, and certain types of peripheral neuropathy.
Radiofrequency Ablation
This technique uses controlled heat generated by radiofrequency energy to create a lesion on specific nerves, interrupting their ability to transmit pain signals. It can provide pain relief lasting six months to a year or longer, and the procedure can be repeated if pain returns.
Medication Management
Neuropathic pain often responds to specific medication classes including anticonvulsants (such as gabapentin or pregabalin), serotonin-norepinephrine reuptake inhibitors (SNRIs), tricyclic antidepressants, and topical agents (such as lidocaine patches or capsaicin cream). Opioids are generally less effective for neuropathic pain and are not considered first-line treatment.
Physical Therapy & Desensitization
Particularly for conditions such as CRPS, a structured physical therapy and desensitization program is a critical component of treatment. Early mobilization and graded motor imagery can help retrain the nervous system and improve functional outcomes.
When to Seek Care
Neuropathic pain should be evaluated promptly, particularly if you are experiencing progressive numbness or weakness, burning or electric-shock pain that does not respond to over-the-counter medications, pain following surgery or an injury that worsens over time rather than improving, or symptoms of shingles accompanied by persistent pain. Early intervention in neuropathic pain conditions is associated with better long-term outcomes.