Central sensitization

Increased responsiveness of central nervous-system circuits involved in processing nociceptive signals.

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Amplification of signal processing

Central sensitization describes increased responsiveness in central nervous system circuits involved in nociceptive signalling. It may contribute to hypersensitivity and persistent symptoms. It does not mean that pain is invented or that peripheral contributors are absent. Pain that appears disproportionate does not justify treating this mechanism as a certain diagnosis.

Clinical assessment considers distribution, responses to stimuli, sleep, fatigue, associated conditions and alternative explanations. Questionnaires do not directly measure neuronal activity and cannot replace assessment. Management may combine education, graded activity, sleep strategies and appropriate psychological support. Explaining potentially modifiable mechanisms is preferable to portraying the brain as permanently defective. A new focal deficit or systemic symptom still requires investigation even when a sensitization mechanism has previously been considered.

Assessment and course

Assessment records onset, distribution, aggravating factors and effects on sleep, work and everyday activities. Pain is a real experience; its intensity is not a direct measure of tissue damage. Examination looks for findings supporting a particular cause and for neurological changes. An abnormal image alone is not a sufficient explanation. Changes over time and responses to activity help clinicians revise the initial working diagnosis. Important information includes what you can still do, what has become difficult and whether symptoms are becoming more widespread.

Individualized care

Goals might include walking farther, sleeping better or returning to a task rather than expecting immediate complete pain relief. Education, appropriate activity and progressively adjusted exercise are important components. Manual treatment can sometimes complement this approach after contraindications have been considered. At TAGMED, selecting a modality should follow assessment and require observable functional benefit; a symptom name alone does not justify laser treatment or spinal decompression. Medication or medical interventions require decisions matched to the diagnosis. New weakness, altered saddle sensation or a new inability to urinate requires urgent medical assessment. Persistent symptoms deserve review rather than indefinite repetition of an ineffective treatment.

Frequently asked questions

Does central sensitization exclude a local lesion?

No. Several pain mechanisms can coexist in one person.

Does intensity indicate severity?

Not by itself; the course, associated signs and examination are more informative.

Is MRI always needed?

No. It is useful when a specific clinical question could change management.

Does complete rest speed recovery?

Prolonged rest can reduce capacity; activity should be adjusted to the condition.

How is progress judged?

Compare everyday function and symptoms with practical goals agreed at the beginning.

Educational information from The Spine Page. This entry does not replace an individual assessment. Documentary version: October 12, 2026. Sylvain Desforges, B.Sc., D.O., N.D., osteopath and naturopath.