Patient-friendly summary
If you read nothing else
Bottom line
Worth discussing with your provider if imaging and local treatments haven't explained or relieved persistent regional muscle or joint pain.
Preliminary evidenceMyth vs fact
Words decoded
- nociplastic pain
- — pain that happens because the nervous system is overly sensitive, not because body tissues are damaged
- central sensitization
- — when the brain and spinal cord turn up the volume on pain signals, so normal touches start to hurt
- myofascial pain syndrome
- — a diagnosis sometimes given for regional muscle pain that was thought to come from trigger points in muscles
- chronic primary pain
- — ongoing pain that lasts more than three months and cannot be fully explained by another injury or disease
- nociceptive pain
- — pain that comes from actual or potential tissue damage, like a cut or arthritis
Think of it like
A home smoke alarm that blares every time you make toast, even though there is no fire.
In chronic primary musculoskeletal pain, your nervous system is like that overly sensitive alarm. It screams 'danger' and creates real pain, even when your muscles and joints are structurally healthy.
Not everyone agrees
The paper challenges the old belief that regional musculoskeletal pain always comes from local tissue problems like trigger points, and it suggests many people diagnosed with myofascial pain syndrome actually have a centralized pain condition that won't respond well to injections or purely local therapies.
Full research — for clinicians and curious readers
Study Summary
Background
Chronic regional musculoskeletal pain without identifiable tissue damage has historically been poorly understood and inadequately treated. Many patients with persistent neck, shoulder, back, or other regional pain have been diagnosed with myofascial pain syndrome (MPS) and treated with anatomically-focused interventions like trigger point injections, despite limited success. The recent ICD-11 classification introduced 'chronic primary musculoskeletal pain' as a distinct category under chronic primary pain, suggesting these conditions may result from abnormal pain processing rather than tissue damage.
What They Did
This perspective article reviews the new classification of chronic primary musculoskeletal pain and compares it with traditional myofascial pain syndrome. The authors, leading pain researchers from multiple countries, examine proposed diagnostic criteria, underlying mechanisms, and treatment implications. They analyze how this reclassification might change clinical practice and patient understanding of regional pain conditions.
What They Found
The authors propose that chronic primary musculoskeletal pain represents 'regional fibromyalgia' with similar central sensitization mechanisms. Diagnostic criteria include regional pain lasting over 3 months that cannot be explained by tissue damage, clinical examination showing pain hypersensitivity, and often accompanying symptoms like fatigue, sleep disturbance, and cognitive problems. This differs from traditional MPS approaches that focus on trigger points and local tissue abnormalities. The overlap between these conditions suggests many patients previously diagnosed with MPS may actually have chronic primary pain requiring different treatment strategies.
What This Means
This new classification represents a paradigm shift from viewing regional pain as purely structural problems to recognizing central nervous system dysfunction as a key mechanism. Instead of focusing on trigger point injections and local treatments, clinicians should consider centrally-acting medications, self-management strategies, increased physical activity, and psychological therapies. For patients, this provides a legitimate medical explanation for persistent pain and may reduce stigma associated with 'unexplained' symptoms. However, acceptance by healthcare providers and patients will require significant education and time, as it challenges traditional biomedical approaches to musculoskeletal pain.
- Minimum Duration
- 3 months
- Proposed Diagnostic Criteria
- 4
Key Findings
| Finding | Detail | Impact |
|---|---|---|
| Chronic primary MSK pain shares mechanisms with fibromyalgia | Regional pain without tissue damage may represent 'regional fibromyalgia' with similar central sensitization pathways | High |
| Four clinical criteria proposed for diagnosis | Including regional pain >3 months, pain hypersensitivity on exam, sensory sensitivity, and central symptoms | High |
| Many MPS patients may have chronic primary pain | Overlap in symptoms and poor response to anatomical treatments suggests misdiagnosis | High |
| Treatment paradigm shift needed | Move from peripheral interventions to centrally-acting medications and biopsychosocial approaches | High |
| Validation and acceptance challenges remain | New classification requires healthcare provider education and patient acceptance | Medium |
Strengths
- Expert international authorship
- Addresses important clinical problem
- Provides clear conceptual framework
- Bridges research and clinical practice
Limitations
- Perspective piece without new data
- Proposed criteria require validation
- Implementation challenges not fully addressed
- Limited discussion of patient acceptance
Key Takeaways for Patients
What This Means for You
Your regional pain without clear injury might be from nervous system sensitivity, not tissue damage
This is a legitimate medical condition similar to fibromyalgia but affecting one area
Treatment should focus on the nervous system, not just the painful spot
Medications, exercise, and stress management may work better than repeated injections
Having this diagnosis means your pain is real and has a medical explanation