Hurt Doesn't Always Mean Harm: Understanding Pain

If you've had a sore back, neck or shoulder for a while, you've probably wondered what's actually going on in there. Most of us grow up thinking pain works in a simple way: something gets damaged, and we feel it. The worse the damage, the worse the pain. That's partly true, but it's not the whole story. Research over the past few decades has shown that pain is more complicated than that. The good news is that this also means there are more ways to help it.

Pain is an alarm, not a damage meter

A helpful way to think about pain is as your body's alarm system. Its job isn't to measure damage. Its job is to protect you.

Your nervous system is always taking in information. It listens to your body, but it also takes into account how well you've slept, how stressed you are, what's happened to you before, and what you think is going on. When it decides you need protecting, it creates pain.

Think of a smoke alarm. It should go off when there's a fire. But a very sensitive alarm might also go off when you burn toast. The noise is real and worth paying attention to, but it doesn't always mean the house is on fire.

In the same way, your pain is always real, even when nothing in your body is ‘damaged’.

Scans don't always tell the full story

A great example of this comes from research on back scans. When researchers scanned the spines of people with no back pain at all, they found that "wear and tear" was very common. About half of people in their 30s had signs of disc changes, and many had disc bulges, all without any pain.

These changes are a normal part of getting older, a bit like wrinkles on the inside. So if your scan shows something, it doesn't automatically mean that's the cause of your pain. Scans are still useful for ruling out serious problems, but they're only one piece of the puzzle.

Why pain can stick around

Most parts of the body heal within a few weeks to a few months. So why does some pain last much longer?

When pain goes on for a while, the nervous system can become more sensitive. It's as if the alarm gets turned up. Things that used to feel fine might start to hurt, and the pain can move around or change even without a new injury. This doesn't mean you're doing more damage. It means your alarm system has become extra protective.

Everyday life can make this better or worse. Poor sleep makes us more sensitive to pain the next day. Stress keeps the body on high alert. Worrying that something is badly wrong can make the alarm even louder.

Over time, these things can start to feed into one another. Pain makes it hard to sleep, and poor sleep makes pain worse. Pain makes you move less, and moving less leaves you stiffer and more tired. You might skip catch-ups with friends or stop doing hobbies you enjoy, which takes away things that usually help you feel good and cope.

It's a bit like a traffic jam. A car breaks down and traffic backs up. Even after the car has been towed away, the jam can take a long time to clear, because now it's the traffic itself keeping things stuck. Persistent pain can work the same way. The original problem may have settled, but a mix of other things keeps the pain going.

Pain changes the way we move

When something hurts, we naturally start protecting it. We might hold it stiffly, tense up the muscles around it, move it less, or avoid certain activities. Straight after an injury, that's a sensible thing to do.

But if we keep moving this way for months, it can cause new problems. Muscles get weaker, joints get stiffer, fitness drops, and we can lose trust in our bodies. Staying tense all day is tiring too. Some research even suggests the brain can get a little less clear about the painful area over time, which may make movement feel clumsier.

Does this mean you should just push through the pain? Not quite. Some pain during movement is safe, especially when pain has been around a long time. But sometimes pain is a sign that an area needs more time, or that a nerve is irritated. Often it's a mix of things. Working out what's going on for you is a big part of what a physio can help with.

Why one fix is rarely enough

Because persistent pain often has several things feeding it at once, a single treatment on its own often doesn't do the job. Just fixing your posture, just taking medication, just doing exercises or just managing stress each tackles only one part of the picture.

What tends to work better is chipping away at several things together. The encouraging part is that small changes in different areas can add up to a big difference.

What you can do

• Remember that hurt doesn't always mean harm. Especially with pain that's been around a while, some discomfort when you move is usually safe.
• Trust that your body is strong. Backs, necks and joints are tough, adaptable parts of your body.
• Move little and often. Short movement breaks during the workday can help your body feel less stiff and your nervous system feel safer.
• Look after your sleep. It has a real effect on how much you hurt.
• Find ways to manage stress. Walking, breathing exercises, time with friends, or whatever helps you switch off.
• Build up slowly. Gradually doing a bit more each week works better than waiting for the pain to disappear first.

Understanding your pain won't make it vanish overnight, and it works best alongside movement and exercise. But for many people it's a really helpful first step, because it turns pain from something scary and confusing into something you can start to work with.