Understanding Persistent Pain: Why Pain Is More Than Just Tissue Damage
Pain is something we all experience, but persistent pain can be much more complex than many people realise. For some, pain continues long after an injury has healed. For others, symptoms may fluctuate without an obvious cause or may feel more severe than scans or tests suggest.
This does not mean the pain is “all in your head”. Pain is real, personal, and influenced by a combination of biological, psychological, and social factors.
What is chronic pain?
Chronic pain is pain that persists or recurs for more than three months. It may be described as chronic primary pain, where there is no clear underlying condition that fully explains the pain or its impact, or chronic secondary pain, where an underlying condition does adequately account for the symptoms. These two types can also exist together.
This helps explain why two people with apparently similar injuries or scan findings can experience pain very differently.
Pain and tissue damage are not the same thing
Pain is designed to protect us. In the early stages of an injury, this protective response is useful because it encourages us to reduce load and allow healing.
However, with persistent pain, the nervous system can sometimes become more protective. Pain may continue even when the amount of tissue damage does not fully explain the severity of symptoms.
A useful way to think about this is that pain is not a simple “damage meter”. It is influenced by many factors, including previous experiences, stress, sleep, emotions, beliefs, physical activity, general health, work, relationships, and wider life circumstances.
There are four key pain messages:
Pain protects us and supports healing.
Persistent pain can become overprotective and interfere with recovery.
Many different factors can influence pain.
There are many ways to reduce pain and improve recovery, and movement can be safe.
Why do sleep, stress and mood matter?
Persistent pain does not happen in isolation. Poor sleep, anxiety, low mood, fear of movement, work pressures, difficult life events and social stress can all increase the burden of pain.
This does not mean these factors are the sole cause of pain. Instead, they can influence how sensitive and protective the pain system becomes.
For example, someone who has been told that their spine is “damaged” may understandably become afraid to bend, lift or exercise. Over time this may lead to muscle guarding, reduced activity, loss of confidence and deconditioning. These changes can then contribute to greater disability and ongoing pain.
Why scans do not always tell the whole story
Imaging can be useful when it is clinically indicated, but scan findings do not always correlate closely with pain.
A scan may show structural changes in someone who has very little pain, while another person may experience significant pain without major findings on imaging.
This is why assessment should not focus only on structures and scans. A person-centred approach considers how pain affects movement, sleep, work, relationships, confidence and quality of life.
How can persistent pain be managed?
Management is usually most effective when it addresses the individual rather than focusing on one single treatment.
Non-pharmacological approaches may include:
pain education
exercise and physical activity
psychological approaches such as CBT or ACT
pacing and flare-up management
improving sleep
gradual return to meaningful activities
appropriate signposting or referral to other services.
The aim is not always to eliminate pain completely. For many people, an important goal is to improve confidence, function, independence and quality of life while reducing the impact pain has on day-to-day living.
Building confidence in movement
One approach used in persistent pain rehabilitation is Cognitive Functional Therapy (CFT).
CFT looks at the individual's experience of pain, including their beliefs, movement behaviours, protective strategies and lifestyle factors. It then focuses on three broad areas:
Making sense of pain: understanding the person's beliefs and experiences.
Exposure with control: gradually returning to movements or activities that may have become feared or avoided.
Lifestyle change: addressing factors such as sleep, physical activity and unhelpful boom-and-bust patterns.
The aim is to improve self-efficacy and reduce the cycle of pain-related distress and disability.
A more helpful way to think about recovery
Recovery from persistent pain is rarely a straight line. Flare-ups can happen and do not necessarily mean that new damage has occurred.
A more useful approach is often to ask:
What can I do to gradually improve my confidence, function and ability to manage symptoms?
This might involve pacing activities, improving sleep, gradually increasing movement, reducing unnecessary fear around certain tasks, and developing strategies for flare-ups.
Persistent pain can be complicated, but it is manageable. Understanding that pain is influenced by many interacting factors can open up more treatment options and help people move towards greater confidence, function and quality of life.
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