Why your back pain keeps coming back

Most people who come to us with back pain have had it before. It settled, they got on with things, and months later it returned — often after something unremarkable, like lifting a suitcase or standing too long at a wedding. The episode feels random. It usually is not.

Load versus capacity

Think of your back as having a certain capacity — how much load it can handle before it complains. Everyday life applies load: sitting, lifting, carrying, twisting, standing. Pain tends to appear when load exceeds capacity, not when something is broken.

There are only two ways to close that gap. You can reduce load, which is what most people do instinctively. Or you can raise capacity, which takes longer and feels counterintuitive when you are sore — but it is the half that stops the pattern repeating.

Rest lowers the load. It also lowers the capacity. That is why the pain settles and then returns.

Why scans often confuse things

Imaging is essential when there is reason to suspect serious pathology. For ordinary recurring back pain it can mislead. Findings such as disc bulges and degenerative changes are common in people with no pain at all, and they become more common with age — much like grey hair. Seeing one on a report does not establish that it is the source of your symptoms.

We are more interested in what provokes your pain, what eases it, and what your back currently tolerates. Those things are testable in a room, and they are what a plan is built from.

What tends to help

• Keep moving early. Gentle, tolerable movement in the first days beats bed rest.
• Load it progressively. Strength work for the hips, trunk and legs raises capacity.
• Change position often. The problem is usually sustained posture, not a “wrong” one.
• Sleep and stress count. Both change how much pain you feel from the same load.
• Progress on evidence. Increase when you tolerate the current level, not on a schedule.

When to seek medical attention rather than wait

Back pain is rarely sinister, but some symptoms need prompt assessment by a doctor or emergency department:

• Numbness around the groin or inner thighs, or difficulty controlling bladder or bowels
• Progressive weakness in a leg or foot
• Pain following significant trauma, such as a fall or collision
• Fever, unexplained weight loss, or a history of cancer alongside new back pain

If any of these apply, do not wait for a physiotherapy appointment.

The short version

If your back pain keeps returning, the useful question is not “what is damaged?” but “what can my back currently tolerate, and how do I raise that?” Settling an episode is straightforward. Not having the next one is the part worth doing properly.