If posture caused pain, every teenager hunched over a phone would be in agony. They aren’t. If posture caused pain, every yoga teacher would be pain-free. They aren’t. So what’s actually going on?
“Maybe it’s my posture” is one of the most common things patients say when they sit down in front of me. They’ve usually been told it before. Sometimes by another physio. It’s a tidy explanation. It’s also, most of the time, the wrong one.
Why “your posture is bad” became the default diagnosis
Posture is visible. Pain isn’t. So when a clinician has 15 minutes to assess someone with back pain, the easy thing to point at is the visible thing — a forward-leaning head, a slumped shoulder, a tilted pelvis. It feels like an explanation. It looks like one. And the patient leaves with something they can “work on” (sit straight, do these stretches), which feels useful.
The problem is that posture is correlated with almost everything — your work, your mood, your fatigue, your previous injuries — so blaming pain on posture is a bit like blaming a traffic jam on the colour of the cars. There’s a relationship in there somewhere, but you’re missing the actual cause.
What the research actually shows
Over the last 15 years, multiple large studies have looked at the link between posture and pain. The findings are pretty consistent:
- People with “good” posture get just as much pain as people with “bad” posture
- Spinal curvature (lordosis, kyphosis) doesn’t reliably predict who will develop back pain
- Forward head posture and neck pain show only a weak association
- Sitting position has surprisingly little to do with low back pain — what matters more is how long you stay in any one position
The summary version: posture is a weak predictor of pain. Plenty of people with “perfect” posture have chronic pain. Plenty of people with terrible-looking posture don’t.
What actually causes recurring pain
If it’s not posture, what is it? Usually some combination of:
- Tissue load that exceeds capacity— too much, too fast, too often, without recovery. Your back doesn’t care if you’re slouched or straight if you’ve been loading it for ten hours straight.
- Restricted, sensitised tissue — joints that have lost normal glide, muscles and fascia stuck in a chronic short position, nervous-system pain pathways that have been upregulated for months.
- Movement variety, or lack of it— bodies are made to move through ranges, not hold one shape. The single biggest risk factor for spinal pain isn’t bad posture. It’s the same posture for too long.
- Unresolved earlier injuries — old strains and sprains that healed badly create compensation patterns that quietly drive the next injury.
None of these get fixed by sitting straighter. More on what really drives recurring back pain →
When posture genuinely matters
To be fair, posture isn’t completely irrelevant. There are situations where it does contribute meaningfully:
- If you sit (or stand) in one position for long stretches, that becomes the body’s default — and tissue around it adapts
- If you have a fresh injury, certain positions can flare it up; modifying for a few weeks helps healing
- If your work demands a sustained awkward position (overhead, squatting, twisted), the cumulative load matters
- If you’re recovering from a specific structural issue — disc, nerve, joint capsule — position can either offload or aggravate
Notice the pattern: in every case, it’s about load and time, not about whether your spine is in some textbook ideal alignment.
Why this matters for treatment
If your physio’s entire plan is “sit straighter, do these stretches, strengthen your core,” they’re treating a posture they’ve decided is the problem. If the posture wasn’t actually causing the pain, the plan won’t resolve it.
The hands-on alternative is to physically address the restricted tissue, sensitised joints, and underlying movement patterns that are actually driving the pain. Manual therapy, dry needling, soft tissue work, then targeted strength to support the change. More on what hands-on treatment actually does →
Posture might still be worth tweaking. But it’s the last thing on the list, not the first.
The bottom line
Stop blaming your slouch. The body is more resilient and more interesting than that. Recurring pain almost always has a more specific driver — and it’s usually treatable once it’s actually identified.
Related reading: