Low back pain
Also called: lower back pain, lumbago. Clinical name: Non-specific low back pain.
Lower back pain is very common and usually has no single serious cause. Most acute episodes improve within a few weeks, and staying gently active — rather than resting in bed — is what helps recovery most.
What it actually is
Low back pain is pain across the lower part of your back, and it’s one of the most common problems there is — back pain, particularly lower back pain, is very common, and almost every adult will have it at some point. Most of the time it’s what clinicians call non-specific low back pain: there’s no single structure or serious disease to blame. The muscles, small joints and discs of the lower back all share the load, and any of them can become irritated, often without a clear-cut trigger.
That “we can’t name one exact cause” label sounds unsatisfying, but it’s actually the reassuring part. Non-specific low back pain is rarely a sign of anything dangerous, and in most cases it goes away on its own within a few weeks. It’s not always obvious what sets it off — an awkward lift, a twist, a long spell sitting, or seemingly nothing at all — which is why chasing a single explanation often matters less than simply letting it settle.
The other big shift is what helps it settle. The old instinct to take to bed has been turned on its head: the advice now is to stay active and keep up your normal daily activities as much as the pain allows, rather than resting up and waiting. Gentle movement helps your back recover, while long periods of rest tend to leave it stiffer for longer. A small number of people go on to have longer-lasting or recurring back pain — but even then, staying active, strong and moving well is the mainstay.
How bad is it?
Low back pain isn't graded 1–2–3 the way a muscle tear is. It's usually described by how long it has been going on: acute (less than 6 weeks — the most common kind, often coming on after an awkward lift, twist or for no obvious reason at all), sub-acute (6–12 weeks — settling more slowly than expected), and persistent or chronic (more than 12 weeks — grumbling on, often needing a structured, gradual return to activity). By far the most common form is non-specific low back pain — meaning no single structure or serious disease can be pinned down as the cause, which sounds unsatisfying but is actually the reassuring part: it rarely signals anything dangerous, and most cases improve.
How long will it take?
Recovery moves in phases. This is the typical shape of it — yours may run faster or slower, and the numbers below are general ranges, not a forecast for your specific injury.
When to get it looked at
Most cases settle with time and sensible loading. Get it assessed by a professional if any of these apply — they can point to something that needs hands-on care:
- Loss of control of your bladder or bowels — difficulty peeing, or wetting or soiling yourself (a possible cauda equina emergency)
- Numbness or tingling around your genitals, buttocks or back passage — so-called saddle numbness (a possible cauda equina emergency)
- New weakness, numbness or tingling in both legs at the same time (a possible cauda equina emergency)
- Back pain that comes on after a serious fall, car accident or other major injury
- Back pain with unexplained weight loss, a high temperature, or feeling generally unwell
- Constant, severe pain that's worse at night and won't ease with rest or position
This is a list of warning signs, not a diagnosis. If you are worried, or the pain is severe, see a GP, physiotherapist or urgent care.
What to track while you recover
Back pain swings day to day, which makes it hard to tell whether you're actually turning a corner or just having a good afternoon. A simple daily record turns that noise into a trend you can see — and it's exactly what a GP or physio asks about first.
- Pain score, 0–10, and where it sits — central, one side, or spreading into a buttock or leg
- What you could and couldn't do today: sitting, standing, walking, bending, sleeping
- What clearly set it off or flared it — a lift, a long drive, a day at a desk
- What helped — moving about, a walk, heat, pain relief, changing position
- Any new leg symptoms, numbness or bladder or bowel changes (the things that need urgent review)
This is exactly what InjuryLog does.
Log each of these in seconds, watch the trend build day by day, and keep every scan and receipt tied to this one injury. Free to start.
What to tell your physio
The first appointment goes faster when you can answer the opening questions from a record instead of memory. Bring the pattern, not just how today feels.
- How and when it started, and whether it's improving, static or getting worse
- Where the pain is and whether it travels below the knee, with any pins and needles or numbness
- What reliably eases it and what winds it up — sitting, standing, bending, walking
- How much it's affecting sleep, work and normal activity
- Whether you've had episodes before, and what did or didn't help last time
Walk in with the whole picture.
InjuryLog turns your daily logs into a clean Physio Visit Pack, a one-page summary your physio can actually read, so the first appointment starts with facts, not guesswork.
The questions people actually ask
How long does lower back pain last?
For most people it's weeks rather than months. Acute low back pain — the most common kind — usually improves within a few weeks, though it can sometimes last longer or come back. Pain that's still there after about six weeks is worth reviewing with a GP or physio, and a smaller number of people have longer-term, on-and-off back pain that's managed rather than cured. Staying gently active throughout tends to shorten the whole thing.
Will lower back pain go away on its own?
Usually, yes. It's not always obvious what causes back pain, and it often gets better on its own within a few weeks. 'On its own' works best when you keep moving and carry on with normal activities as much as you can, rather than resting up and waiting. If it hasn't improved at all after a few weeks, or it's getting worse, that's the point to get it looked at.
Should I rest or stay active with lower back pain?
Stay active. The advice to lie in bed has been reversed — the guidance now is to stay active and try to continue with your daily activities, and not to stay in bed for long periods. Gentle movement helps your back settle, while long spells of rest tend to leave it stiffer and slower to recover. Do what the pain reasonably allows and build back up as it eases.
What are the best stretches for lower back pain?
Gentle, regular movement usually beats any single 'magic' stretch. Easy options many people find helpful are pulling your knees towards your chest, gentle lower-back rotations, and slow cat-cow style movements — done comfortably, not forced into pain. The bigger picture is staying generally active and moving little and often. A physio can tailor specific exercises if the pain is persisting, which is more useful than a generic routine.
Should I use ice or heat for lower back pain?
Either can help, and it's largely down to what feels better for you — neither cures the underlying problem. Many people find heat, like a warm bath, heat pack or wheat bag, eases muscle tension and stiffness in the lower back. Ice may feel better in the first day or two, or after a specific flare. Use them as comfort measures alongside the main thing that helps: keeping gently active.
When should I worry about lower back pain?
Most back pain isn't a sign of anything serious, but a few symptoms need urgent attention. Get emergency help for loss of bladder or bowel control, numbness around your genitals or back passage, or new weakness or numbness in both legs — these can point to a rare but serious problem called cauda equina. Also seek prompt advice for back pain after a major injury, with unexplained weight loss or fever, or constant severe pain that's worse at night.
Could my lower back pain be my kidneys?
It's a common worry, but most low back pain is muscular or joint-related rather than coming from the kidneys. Kidney pain tends to sit a bit higher and more to one side, often feels deep or constant rather than eased by moving, and usually comes with other clues — a fever, feeling unwell, or pain and changes when you pee. If those are present, or you're unsure, it's worth getting checked rather than guessing.
Is my lower back pain muscular or something else?
Most low back pain is classed as non-specific, which usually means it's coming from the muscles, joints and soft tissues of the back rather than a single serious cause — and it's the most common and most reassuring category. Pain that stays around the back and eases with movement fits this pattern. Pain that shoots down a leg below the knee with pins and needles is more likely nerve-related, such as sciatica, and is worth mentioning to a clinician.
Why does lower back pain come and go?
Because it's sensitive to load and activity. It can flare when you spike the demand on your back — a long drive, a heavy lift, a day hunched at a desk — and quieten when you move more normally. That on-off pattern is very common and doesn't mean something is seriously wrong or that you're not recovering. Tracking what came before each flare is the quickest way to spot your own triggers.
Sources
- Back pain — NHS
- Low Back Pain — AAOS OrthoInfo