The most common thing I hear from people with sciatica is some version of “I think I’ve done something serious.” The pain runs from the lower back or buttock down the leg, often with pins and needles or numbness, sometimes with a leg that feels weak or unreliable. Those symptoms are genuinely alarming when you’re living with it.
I want to walk through what sciatica actually is, what causes it, how long it tends to last, the few warning signs that need urgent attention and the part that matters most in your decision for how to manage it.
What sciatica actually is
First of all, sciatica is a description, not a diagnosis. It means pain that travels along the path of the sciatic nerve which goes from the lower back or buttock, down the back or side of the thigh and sometimes into the calf and foot. The proper clinical term is lumbar radiculopathy: pain coming from an irritated or compressed nerve root where it exits the lower spine.
The common culprit is a lumbar disc herniation pressing on or irritating a nearby nerve root. In people between about 25 and 55, roughly 95 per cent of symptomatic herniated discs happen at the two lowest levels of the lumbar spine — L4-L5 and L5-S1 — which is why the pain so often follows that familiar track down the back or side of the leg. In older patients, spinal stenosis (a narrowing of the spaces the nerves travel through) becomes a more common cause.
Here’s the bit I spend a lot of time explaining in the room: the leg pain isn’t a leg problem. It’s a signal coming from higher up, where the nerve is being irritated. That’s why stretching the hamstring or massaging the calf barely does anything.
What sets it off
“I barely did anything, I lift stuff like that all the time.” Sometimes sciatica sets in after a major injury, but often, it’s the result of a slower process. After all, “the straw that broke the camel’s back” is a saying for a reason.
Your lower back is built to share load across all its segments, each contributing a bit of movement. When one or two stop moving well — stiff, guarded, not pulling their weight — that load doesn’t disappear. It shifts to the segments and discs still doing their job, which then carry more than their share. Over months and years, that uneven loading is a likely way a disc ends up under more stress than it was built for.
We see this clearly when a segment is fused and made rigid: the structures either side measurably take on more load. A stiff joint isn’t a fused one, but the principle travels — and it points toward what tends to help anyway: restoring lost movement and loading the area sensibly, rather than just chasing the painful spot. That small box was the last straw, not the whole story.
How long it lasts, and why the path matters
This is the part that should shape what you decide to do, so I’ll give it to you straight, including the parts that cut against booking an appointment.
A lot of sciatica does improve with time. The research on the natural history is reasonably consistent: around 70 per cent of people improve within four weeks, and by twelve weeks roughly 87 per cent have improved. The disc itself often shrinks on its own, too — a 2017 meta-analysis put the spontaneous resorption rate at around 67 per cent. So if someone asks me “will this get better on its own?”, the honest answer is: probably, eventually, for most people.
But “probably, eventually” is doing a lot of work in that sentence. “Improved by twelve weeks” means three months of pain that wrecks your sleep and your work. And it’s not a sure thing — the data behind the UK’s NICE guidelines shows more than 30 per cent of people still have meaningful symptoms a year later. Left entirely to chance, sciatica is close to a coin toss between a slow, grim recovery and a problem that digs in and stays.
That’s the whole case for getting it looked at. Not because I’m going to magically cure something your body might have sorted on its own — but because the right care changes the odds. It can shorten those three months, keep you working and sleeping while you heal, and lower the chance you end up in the third of people who are still struggling a year on. The earlier that starts, the more there is to work with — which is the real reason not to wait and see.
The one instruction that matters most: stay active — but well
If there’s a single thread running through every serious guideline on sciatica, it’s this: stay active. Remaining active is the first-line recommendation almost everywhere, and prolonged bed rest is now considered actively harmful — it stiffens you up, deconditions you, and drags recovery out.
The trouble is that “stay active” is much harder to do well than it sounds. Do too little and you seize up. Do the wrong thing, or push too hard too soon, and you light the nerve up and lose a week. This is genuinely where having someone who knows what they’re looking at earns its keep — knowing which movements suit your presentation, how much load is right at each stage, and when to push versus when to back off. “Just keep moving” is correct advice and almost useless on its own, because the people who most need to hear it are in too much pain to know how.
Why conservative care comes first
For sciatica without red flag symptoms (I’ll come to those shortly), the guidelines and the evidence agree: non-surgical care is where you start. Surgery has a real place for a minority — significant or worsening weakness, or severe symptoms that won’t settle despite good care — but for most people, structured conservative management is the first move, not the last resort.
The research backs a fairly straightforward package. A systematic review of conservative care for disc-related sciatica found that active approaches — stabilisation work, directional exercises, mobilisation, manipulation, traction — beat doing nothing, across decent-quality trials. NICE specifically recommends exercise as the core of treatment, with hands-on manual therapy used alongside it rather than instead of it. And there’s a finding I think is worth knowing about: a large study found that people who had chiropractic spinal manipulation for sciatica were less likely to be prescribed opioids and had fewer opioid-related problems down the line — which matters, given how easily back and leg pain becomes a doorway to long-term medication.
I won’t pretend any single technique is a silver bullet, because it isn’t, and people respond differently. But the combination — staying active, the right exercise, hands-on work to settle the irritated segment, and a plan that moves forward as you improve — is well supported, and it’s the approach that gets most people through the worst of it in better shape.
When sciatica genuinely is urgent — the red flags
This is the most important section in the article, so please don’t skim it.
Most sciatica is not dangerous. But there’s one uncommon, serious condition that needs emergency care, not an appointment: cauda equina syndrome, where the bundle of nerves at the bottom of the spinal canal gets compressed.
Go straight to a hospital emergency department — don’t wait, don’t book in with me — if you notice any of these, especially if they’re new or getting worse:
- Numbness in the “saddle” area — groin, genitals, inner thighs, the part of you that would touch a saddle
- New trouble urinating — difficulty starting, not being able to empty your bladder, or losing the sense that you need to go
- Loss of bladder or bowel control
- Sciatica hitting both legs at once
- Fast-developing or severe weakness in one or both legs
These are uncommon, and having one doesn’t mean disaster — but with cauda equina syndrome the speed of treatment genuinely changes the outcome, so it’s not something to sit on. I’m not telling you this to frighten you. I’m telling you so that in the rare event it happens, you know it’s different and you act fast.
If none of those apply, sciatica isn’t an emergency — but it’s still worth getting looked at properly rather than gritting your teeth and hoping.
How I approach sciatica
It starts with a proper assessment, because not all leg pain is sciatica and not all sciatica is disc-related — and getting that wrong wastes everyone’s time. An initial consult runs 45 minutes: a thorough history, neurological screening, a movement assessment, a check for the red flags above, and a plain-English explanation of what I think is going on and what we’re going to do about it. No jargon for the sake of it.
For mechanical, disc-related sciatica without red flags, the care usually combines hands-on treatment to settle the irritated segment and the tissues around it, specific movement and loading strategies to make the “stay active” part actually doable, and a home exercise program through our patient app so you’re making progress between visits rather than just waiting for the next one. It’s built around your presentation and adjusted as you go, with honest milestones and an endpoint — I’m not interested in signing people up to care that never finishes.
For disc and stenosis cases in particular, one of the tools I reach for is the flexion distraction table — a gentle, low-force technique that decompresses the lower spine without any twisting or cracking, which makes it a good fit for people who are nervous about being adjusted. I’ve written separately about how it works and what the evidence shows: How flexion distraction helps disc pain and spinal stenosis.
When to come in
If you’ve got any of the red flag symptoms above, don’t book — get emergency care now.
Otherwise, if your leg pain is getting in the way of your normal life, or if you just want to know what’s actually going on and have a clear plan, come and get it assessed. Sciatica is a hard thing to tough out alone, and the right care can make it shorter, more bearable, and less likely to turn into a long-term issue.
If you’re in Beechboro, Kiara, or anywhere across the Morley and Bassendean corridor, we’re at 254 Beechboro Rd N, Morley — appointments Monday to Friday and Saturday mornings.
This article is for general education only. It is not a substitute for individual clinical assessment, diagnosis, or treatment. If you have a specific concern about your health, please book an appointment or speak with a registered health professional. The information here should not be applied to your own situation without proper assessment.
Simon Hardy is a chiropractor and the owner of Bassendean Chiropractic in Morley, WA. The clinic combines evidence-informed manual therapy, soft tissue work, and structured rehabilitation delivered through Physitrack to address musculoskeletal complaints across the Bassendean, Morley, Beechboro, and Kiara corridor.
Selected references
- National Institute for Health and Care Excellence (NICE). Low back pain and sciatica in over 16s: assessment and management. NICE guideline NG59; 2016 (updated 2020). (Stay active as first-line; exercise as core intervention; manual therapy alongside exercise; ~30% symptomatic at one year.)
- Vroomen PCAJ, de Krom MCTFM, Knottnerus JA. Predicting the outcome of sciatica at short-term follow-up. British Journal of General Practice. 2002;52(475):119-123. (~70% improving naturally; majority improved by 12 weeks.)
- Alentado VJ, Lubelski D, Steinmetz MP, Benzel EC, Mroz TE. Optimal duration of conservative management prior to surgery for cervical and lumbar radiculopathy: a literature review. Global Spine Journal. 2014;4(4):279-286. (~70% of lumbar radiculopathy improving within 4 weeks.)
- Zhong M, Liu JT, Jiang H, Mo W, Yu PF, Li XC, Xue RR. Incidence of spontaneous resorption of lumbar disc herniation: a meta-analysis. Pain Physician. 2017;20(1):E45-E52. (~66-67% spontaneous resorption.)
- Chiu CC, Chuang TY, Chang KH, Wu CH, Lin PW, Hsu WY. The probability of spontaneous regression of lumbar herniated disc: a systematic review. Clinical Rehabilitation. 2015;29(2):184-195. (Regression rates by herniation type — 96% sequestration down to 13% bulging.)
- Trager RJ, Cupler ZA, Srinivasan R, Harper EG, Perez JA. Association between chiropractic spinal manipulation for sciatica and opioid-related adverse events: a retrospective cohort study. PLOS One. 2025;20(1):e0317663. (Reduced opioid-related adverse events.)
- American Association of Neurological Surgeons (AANS). Cauda Equina Syndrome — patient information. (Red flag symptom list.)