How long does sciatica actually take to settle?

Phillipa FranklandPhysiotherapist

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Therapist assists patient with bent leg stretch on treatment table in bright room

Nobody asks this question casually. People ask it at week three, usually after a fortnight of not sleeping properly, and what they want is not reassurance but a number.

So here is the honest version, including the parts that are less comfortable to hear.

The general shape of it

Most sciatica gets better. That is the single most important sentence on this page, and it is true even when the pain is severe enough to make you cry getting out of the car.

The usual pattern is that the first week or two is the worst of it, that there is a noticeable improvement somewhere between four and eight weeks, and that most people are substantially better by around three months. Leg pain tends to improve before numbness and pins and needles do, and a patch of numbness or a slightly weaker calf can linger for a while after the pain has gone. That lag is normal and it is not a sign that something has been missed.

What people are rarely told is the other half. A minority of people still have some symptoms a year on. Not the same pain, usually, but a residual ache or an area that never quite feels the same. If that is you, you are not an unusual failure of treatment, and it does not mean you are stuck with it forever either.

Why the timeline is longer than a pulled muscle

Sciatica is not really a back problem, which is why it does not behave like one. It is a nerve problem, and irritated nerve tissue is slow.

In most cases the nerve is being irritated where it leaves the spine, commonly by disc material pressing on it or by the chemical inflammation around that. Two things then have to happen. The pressure has to reduce, which the body does surprisingly well on its own, since disc herniations shrink over months without anyone operating on them. And the nerve itself has to calm down, which takes longer than the mechanical part. That is why people often reach a point where they feel structurally fine but the leg still complains.

Our page on sciatica goes through what is actually happening in more detail, and if a scan or a clinician has mentioned a disc, disc injury explains what that does and does not mean.

What makes it slower

Some of this is out of your hands and some of it very much is not.

Complete rest slows recovery. This is the hardest advice to follow and the most consistently supported. Lying still feels like the sensible response and it is not one: movement within tolerance helps nerve tissue settle, and prolonged bed rest makes people stiffer, weaker and more frightened.

Fear slows recovery too, and sciatica is frightening in a way that ordinary back pain is not, because it involves a limb. People stop moving the leg properly, walk with a limp long after they need to, and end up with a secondary problem in the hip or the other knee. A good part of treatment is giving you permission to load the leg again, and enough of an explanation that you believe it.

Waiting also costs you. Not because there is a window that closes, but because the strength and movement you lose in three months of guarding takes longer to rebuild than it did to lose.

When to stop waiting and ask for help

Contact your GP the same day, or go to hospital, if you develop numbness in the saddle area between your legs, difficulty passing urine or loss of control of your bladder or bowels, or weakness in both legs. Those are the symptoms of cauda equina syndrome. It is rare, it is a surgical emergency, and it is the reason we would rather you read this paragraph and never need it.

Beyond that, a leg that is becoming progressively weaker rather than progressively less painful is worth getting looked at promptly rather than at your next convenient moment.

Where surgery fits

This comes up around the two month mark, usually because somebody at work has told a story about their brother in law.

The evidence is reasonably consistent. For people with genuine nerve compression whose pain has not settled with conservative treatment, surgery relieves leg pain faster. Over a longer horizon of a year or two, the outcomes of surgery and of continued non surgical care converge for a good proportion of people. So the operation buys speed rather than a better final destination, which for somebody who cannot work or sleep is a perfectly good reason to have it.

That means the sensible question at eight or twelve weeks is not whether surgery works. It is whether you can tolerate the time the slower route takes. That is your judgement to make, and we will give you our honest read of it and write to your GP if a surgical opinion is what you want.

What treatment does in the meantime

It settles the pain, keeps you moving, and rebuilds what you lost. In practice that means hands on treatment where it helps, specific movements that reduce nerve irritation, advice on getting through the night and the working day, and then a graded strengthening programme once the acute phase passes.

That last part is the bit people abandon as soon as they feel better, and it is the reason sciatica so often returns. Our back and neck physiotherapy page sets out how a course of treatment normally runs, and our fees page tells you what it costs before you ring.

The short version

Expect the first fortnight to be the worst, real improvement by four to eight weeks, and most of it gone by three months. Keep moving. Do not rest it. Do not panic about a scan, for the reasons set out in our piece on imaging. Learn the cauda equina symptoms and act immediately if they appear. And if you are still no better at eight to twelve weeks, that is the moment to have a proper conversation about what happens next rather than another month of hoping.

If you are in the middle of it now, ring us on 01428 642577. Describing it out loud to somebody who sees it every week is often the most useful ten minutes of the whole episode.

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