Pain Neuroscience Education (PNE)

Original Editor - David Greaves, Lynette Fox, and Katie White as part of the Nottingham University Spinal Rehabilitation Project

Top Contributors - David Greaves, Lynette Fox, Becky Mead, Katie White, Kim Jackson, Maram Salem, Lucinda hampton, Uchechukwu Chukwuemeka, Angeliki Chorti, Vanessa Rhule, Jess Bell, Stacy Schiurring, Rachael Lowe, Lauren Lopez, Vidya Acharya, Rishika Babburu, Tolulope Adeniji and Evan Thomas  

Introduction

Pain neuroscience education (PNE) represents a fundamental shift in how rehabilitation professionals address persistent pain. Rather than relying solely on biomechanical explanations emphasising tissue damage and structural pathology, PNE educates patients about the neurobiological mechanisms underlying their pain experience. This approach aims to reconceptualise pain from a "damage signal" to a "danger signal", helping patients develop a more accurate and less threatening understanding of their condition.

The IASP Definition of Pain (2020)

In 2020, the International Association for the Study of Pain (IASP) revised its definition of pain for the first time since 1979, defining pain as "an unpleasant sensory and emotional experience associated with, or resembling that associated with, actual or potential tissue damage."

Key Changes from 1979

The original 1979 definition stated pain was "associated with actual or potential tissue damage, or described in terms of such damage." The 2020 revision introduces two critical changes.

First, removing "or described in terms of such damage" addresses inclusivity, as the original phrasing had been interpreted as requiring verbal articulation for pain acknowledgement. This potentially excluded populations unable to communicate verbally: neonates, individuals with cognitive impairments, those in acute distress, and patients from diverse cultural backgrounds. The 2020 change requires clinicians to recognise non-verbal expressions of pain, including facial expressions, guarding behaviours, and changes in activity patterns.

Second, adding "or resembling that associated with" fundamentally acknowledges that pain can occur without tissue damage and that the pain-tissue relationship is complex and unpredictable, particularly in persistent pain. This validates patient experiences and clinical observations when pain persists despite normal imaging or healed tissue. It is particularly relevant when pain intensity seems disproportionate to observable pathology.

The Six Accompanying Notes

The IASP Task Force provided six notes to accompany the definition:

1. Pain is always a personal experience influenced to varying degrees by biological, psychological, and social factors
2. Pain and nociception are different phenomena; pain cannot be inferred solely from sensory neuron activity
3. Through life experiences, individuals learn the concept of pain
4. A person's report of pain should be respected
5. Although pain usually serves an adaptive role, it may have adverse effects on function and wellbeing
6. Verbal description is only one expression of pain; inability to communicate does not negate pain experience

These notes establish pain within a biopsychosocial framework, requiring rehabilitation strategies that address physical and psychological dimensions while validating each individual's unique pain experience.

Table 1. Comparison of Biomedical and Biopsychosocial Models.

Aspect	Biomedical model	Biopsychosocial model
Pain conceptualisation	Symptom indicating tissue damage	Complex experience influenced by biological, psychological, and social factors
Pain-tissue relationship	Linear: damage causes proportional pain	Non-linear: pain without damage possible; damage without pain possible
Assessment focus	Structural pathology identification	Comprehensive evaluation including physical, psychological, and social factors
Treatment targets	Tissue pathology correction	Multiple domains: tissue health, nervous system sensitivity, beliefs, emotions, social environment, function
Persistent pain explanation	Ongoing damage or treatment failure	Central sensitisation, psychosocial factors, altered processing, threat perception
Clinical utility for chronic pain	Limited effectiveness	Evidence-supported for addressing pain complexity

Traditional biomedical education focuses on anatomical structures and imaging findings. While potentially appropriate for acute injury, this approach can inadvertently reinforce threat when applied to persistent pain. Terms such as "degeneration", "wear and tear", or "bone-on-bone" can increase catastrophising and fear avoidance, potentially worsening outcomes.

What is Pain Neuroscience Education?

Pain neuroscience education (PNE) is a therapeutic approach that teaches patients about pain neuroscience and neurophysiology, aiming to reconceptualise how they understand pain. Recent systematic reviews and meta-analyses demonstrate PNE's effectiveness in reducing pain, disability, kinesiophobia, and catastrophising in chronic musculoskeletal pain populations.

Core Educational Messages of PNE

• Pain as brain output. Pain is produced when the brain concludes tissues require protection, rather than as a direct measure of tissue damage.
• Nociception versus pain. Neural processing of potentially harmful stimuli (nociception) and pain experience are distinct phenomena.
• Multifactorial influences. Biological, psychological, and social factors influence pain through nervous system threat evaluation.
• Central sensitisation. The nervous system can become hypersensitive, producing pain in response to normal inputs; these changes can be influenced through appropriate rehabilitation.
• Hurt does not equal harm. When red flags are excluded, pain during movement does not necessarily indicate tissue damage.
• Meaning and context matter. Beliefs about pain, context, and meaning influence whether pain is experienced and its intensity.
• Safety information reduces threat. Understanding pain mechanisms provides authentic safety information that can reduce pain.

PNE achieves its effects through pain reconceptualisation—shifting how patients think about and relate to their pain. Successful reconceptualisation can reduce threat perception, decrease fear avoidance, improve self-efficacy, and support therapeutic engagement.

Identifying Candidates for PNE

While PNE can benefit a broad range of patients with chronic pain, some patients are more likely to respond well. Clinicians should treat the following as indicators of likely benefit, not exclusion criteria.

Primary Indicators

Maladaptive pain beliefs. Patients demonstrating beliefs rooted in outdated biomedical models (e.g., "my back is damaged/fragile" or "pain means further damage") may particularly benefit from PNE. These beliefs can be identified through questions such as "what do you think is causing your pain?"

Pain catastrophising. Patients who catastrophise demonstrate an exaggerated negative orientation towards pain across three core domains: rumination, magnification, and helplessness. Research consistently demonstrates that catastrophising leads to more intense pain, greater disability, and poorer outcomes. PNE has demonstrated effectiveness in reducing catastrophising.

Fear avoidance behaviours. Patients who avoid activities or movements due to fear of pain or re-injury may benefit substantially from PNE. Fear avoidance creates a vicious cycle: avoidance leads to deconditioning, increasing vulnerability to pain during activity, which reinforces fear and avoidance.

Pain-pathology discordance. Persistent pain beyond expected tissue healing timeframes or despite normal imaging/negative investigations may indicate nociplastic pain or heightened threat perception, which PNE can directly address.

Multiple unsuccessful biomedical interventions. Patients undergoing multiple investigations or treatments focused on tissue pathology without lasting improvement may benefit from PNE's alternative explanatory framework.

Timing Considerations

Emerging evidence supports PNE in subacute and acute pain when psychosocial risk factors are present. PNE is well-established for chronic conditions, including low back pain, neck pain, fibromyalgia, and osteoarthritis. Evidence also suggests preoperative PNE is associated with improved postoperative outcomes.

Framework for PNE Implementation

Successfully implementing PNE requires more than providing neuroscience information. The following framework provides a structure for the effective delivery of PNE.

Step 1: Comprehensive Assessment and Red Flag Exclusion. PNE should follow a thorough clinical assessment that excludes serious pathology. Patients need to feel confident that serious conditions have been ruled out before they engage with pain reconceptualisation.

Step 2: Understanding the Patient's Perspective. Before introducing neuroscience concepts, clinicians must understand their patient's current beliefs and concerns. Questions such as "what do you think is causing your pain?" and "what concerns you most?" are essential starting points.

Step 3: Validation of the Pain Experience. A patient's pain must be explicitly validated before challenging potentially unhelpful beliefs. Without validation, patients are unlikely to trust clinicians or engage meaningfully with education that challenges existing beliefs.

Step 4: Introduce the IASP Definition. The contemporary IASP definition provides an evidence-based framework for beginning pain reconceptualisation. Clinicians can use this definition to highlight that pain is both sensory and emotional, and that it can exist without tissue damage.

Step 5: Explain Modern Pain Neuroscience. Core neuroscience education should use clear, accessible language and effective analogies. Key concepts include: pain as a protective output—produced when the brain concludes tissues need protection; the distinction between nociception and pain; and central sensitisation, whereby the nervous system becomes hypersensitive to normal inputs. Clinicians should also emphasise that danger signals increase pain while safety information can reduce it, and that hurt does not equal harm when red flags are excluded.

Step 6: Identify Peripheral and Central Drivers. Patients benefit from understanding that pain may be driven by both peripheral factors (inflammation, nerve irritation, muscle tension) and central factors (nervous system sensitivity, catastrophising, fear avoidance, mood, sleep, stress, beliefs). Clinicians can work collaboratively with patients to identify their specific drivers and tailor treatment accordingly.

Step 7: Integrate Education with Active Interventions. Evidence suggests PNE is most effective when combined with active interventions such as exercise, manual therapy, or graded activity.

Step 8: Reinforce and Revisit. Pain reconceptualisation is rarely achieved through single sessions. Effective implementation includes multiple sessions, revisiting key concepts throughout treatment, providing written and visual materials, encouraging questions, and celebrating successes.

Dosage and Delivery Considerations

Recent evidence suggests that greater total duration of PNE is associated with greater psychosocial improvements, though delivering PNE across multiple shorter sessions woven throughout treatment may be equally effective. Interactive, conversational formats that allow questions and respond to individual patient needs may be superior to passive delivery. Effective PNE employs metaphors, visual aids, and concrete examples relevant to each patient's experience.

Scope of Practice Considerations

Some central drivers (e.g., significant mood disorders, trauma, complex psychosocial issues) may fall outside a rehabilitation professional's scope of practice. In these situations, clinicians should use PNE to establish shared understanding while collaborating with appropriate professionals and facilitating referrals.

Conclusion

PNE is an evidence-based approach for addressing the complexity of persistent pain. By helping patients reconceptualise pain from damage signals to danger signals, PNE reduces threat perception, decreases fear avoidance, and supports engagement in active rehabilitation. When integrated into comprehensive, multimodal treatment that addresses biological, psychological, and social factors, PNE can improve outcomes for patients with chronic musculoskeletal pain.