Understanding pain: why it hurts and what helps

What pain actually is

It is natural to think of pain as a direct measure of damage: the more it hurts, the worse the injury. In reality, pain is produced by the brain and nervous system as a protective response. Signals from the tissues are one important input, but the brain also takes into account context, past experience, beliefs, mood, stress and sleep before deciding how much protection you need.

That is why a paper cut can hurt more than a deep wound you did not notice during a match, and why the same back twinge can feel much worse during a stressful week. None of this means the pain is imagined. All pain is real; it is just not a simple damage meter.

Acute pain and persistent pain

Acute pain follows an injury or illness and usually settles as tissues heal, typically over days to weeks. It is a useful alarm that encourages you to protect the area while it recovers.

Persistent pain, often called chronic pain, is pain that lasts beyond about three months. By this stage, most tissues have healed as much as they are going to, yet pain can continue. This is often because the nervous system has become more sensitive, a bit like an alarm system with the volume turned up, so it fires at lower levels of threat than before.

The good news is that sensitisation is not permanent. The nervous system can calm down again, especially with the right mix of understanding, activity and support.

Persistent pain is common. Many people in the UK live with pain that has lasted months or years, and it can affect sleep, work, mood and relationships. If that is you, it is worth knowing that there is a lot that can help, and that recovery often looks like gradually doing more of what matters to you, even before pain fully settles.

Hurt does not always mean harm

Scans are a good example. Research consistently shows that findings such as disc bulges, joint wear and tendon changes are common in people with no pain at all, and become more common with age. Finding one on your scan does not necessarily explain your pain, and it does not mean your body is fragile.

Similarly, pain during rehab exercise does not automatically mean you are causing damage. For many conditions, mild discomfort that settles within 24 hours is a sign that you are loading tissues enough to help them adapt. Our guide to exercise rehabilitation explains how physios use pain as a guide.

That said, pain is still information worth listening to. Sharp pain that is getting worse, pain with swelling or new weakness, or pain with the warning signs listed below should always be checked.

What turns pain up and down

• Sleep: poor sleep increases pain sensitivity; better sleep reduces it. Our guide to sleep for recovery has practical tips.
• Stress and worry: high stress and fear about what pain means tend to amplify it.
• Mood: low mood and pain often feed each other.
• Activity: regular, enjoyable movement tends to reduce pain sensitivity over time; avoiding movement tends to increase it.
• Beliefs: believing your body is damaged or fragile can make pain worse and recovery slower.
• Social connection: support from others, and doing things you value, help.

Our guide to exercise and mental health covers the links between movement, mood and wellbeing.

None of these factors means pain is your fault. They are simply levers you can pull, alongside treatment, to help your nervous system feel safer and less on guard.

Practical ways to calm persistent pain

1. Learn about pain. Understanding that hurt does not always mean harm can reduce fear and make activity feel safer.
2. Pace your activity. Find a level you can manage on good and bad days, and build up gradually rather than doing a lot on good days and crashing afterwards.
3. Build strength and fitness gradually. Exercise you enjoy, done regularly, is one of the most effective tools for persistent pain.
4. Protect your sleep with a regular routine.
5. Manage stress in ways that work for you: walking, time outdoors, breathing exercises or talking to someone.
6. Set goals around what you want to do, not only around pain scores.

Recovery from persistent pain is rarely a straight line. Flare-ups are common and do not mean you have caused damage or gone back to the start. Having a flare-up plan, such as reducing activity for a few days and then building back up, helps.

Getting help

Physios can help with both acute and persistent pain, combining education, graded activity and exercise, and hands-on treatment where it helps. For persistent pain, your GP can also discuss medication and referral to NHS pain services where appropriate. The on-site physio at Lycan Strength treats chronic pain as well as injuries, with 20% off for members; you can book a physio appointment online. Our guide to lower back pain is a good example of how these ideas apply in practice.

• Call 999 or go to A&E for numbness around the genitals or buttocks, new bladder or bowel problems, or weakness in both legs.
• Call 999 for chest pain, sudden breathlessness or a sudden severe headache.
• See your GP for pain with unexplained weight loss, fever, a history of cancer, or constant severe night pain.
• If pain is affecting your mood and you feel hopeless or have thoughts of harming yourself, call NHS 111 or Samaritans on 116 123, or 999 in an emergency.

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