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Glossary

What Is Central Sensitization?

Central Sensitization is a nervous system process that makes the brain and spinal cord respond more strongly to pain signals. The response can continue after an injury has healed or become greater than the original tissue problem. This process may help explain widespread pain, tenderness, fatigue, and symptoms that change over time.

Quick Facts About Central Sensitization

Category

Pain processing condition

Used for

Understanding widespread or persistent pain

Common confusion

It is not proof that pain is imaginary

Also called

Central Sensitivity Syndrome

Often discussed with

Fibromyalgia Treatment

Key Takeaways About Central Sensitization

  • Pain sensitivity may spread beyond the original injury area.
  • Symptoms can change even when scans show little tissue damage.
  • Central sensitization is not the same as imagining pain.

How Central Sensitization Works

A person writes on a paper showing a brain sketch and the words “Central Sensitisation” on a wooden desk

Central sensitization changes how the brain and spinal cord process signals from the body. Nerves may send stronger pain messages, and ordinary touch or pressure may feel painful. The nervous system can also stay alert after the original trigger becomes less active.

Related glossary terms: Allodynia, Chronic Pain, Neuropathic Pain.

Clinicians assess this pattern through the history and examination. They look at pain location, sensitivity to touch, sleep, fatigue, and how symptoms respond to activity. A scan may show a physical issue, but scan findings do not always explain the full pain experience.

Fibromyalgia often includes signs of central sensitization. Treatment planning may focus on the whole symptom pattern, not only one sore muscle or joint.

A doctor points at a spine diagram on a monitor while holding a pen at a desk

From the Premier Injury Specialists team

When we assess central sensitization, we review the pain pattern and the symptoms that occur with it. Our team considers tenderness, sleep concerns, fatigue, and daily function alongside examination findings. We use that broader view when discussing care for fibromyalgia and persistent widespread pain.

Central Sensitization in Practice: A Real-World Example

A person with fibromyalgia may feel pain across the back, arms, and legs, even when no new injury occurred. Light pressure from clothing or a gentle examination may also feel unusually painful.

Related Terms

Allodynia

Allodynia is nerve-related pain caused by a touch or sensation that normally should not hurt. Light…

Chronic Pain

Chronic Pain is ongoing or recurring pain that continues after an injury should have healed or…

Neuropathic Pain

Neuropathic Pain is pain caused by damaged nerves or abnormal nerve signals. The pain may feel…

Widespread Pain

Widespread Pain is pain felt across several body areas, often on both sides of the body…

Premier Injury Specialists

Have Questions About Central Sensitization?

Contact Premier Injury Specialists for practical guidance on Central Sensitization and related pain management physician work in Stockbridge.

(478) 607-6106