The short answer: the NHS says sciatica usually gets better in a few weeks to a few months, though it can last longer. Good signs include less leg pain, pain pulling back toward your lower back, and being able to walk or sit for longer. See your doctor if it hasn’t improved after a few weeks of home treatment.
When you’re in the middle of it, the question isn’t really about nerves. It’s whether you’ll get back to normal, and when. The answer for most people is reassuring, even though the timing varies.
How long does sciatica usually last?
Trusted sources give slightly different numbers, because sciatica has different causes and people recover at different speeds.
| Source | What it says |
|---|---|
| NHS | Usually gets better in a few weeks to a few months, and can sometimes last longer |
| Cleveland Clinic | Often doesn’t last longer than six weeks |
| Mayo Clinic | Cases caused by a herniated disk can clear up with treatment in a few weeks to months |
Will sciatica go away on its own?
Often, yes. Mayo Clinic says mild sciatica usually goes away over time. Cleveland Clinic says mild cases often improve with self-care, and most people feel better without needing surgery. It also calls the outlook usually very good, with most people recovering without long-term problems.
There’s one catch. The NHS says sciatica can come back if you’ve had it before, so staying active still matters once you feel better.
What are the signs sciatica is improving?
No health body publishes an official checklist, so treat these as practical markers, not a test. The first has research behind it. The others are simple ways to measure daily life.
- The pain is pulling back. Leg or foot pain moves up toward your lower back. Clinicians call this centralization. A 2012 systematic review of back and neck pain found that 21 of 23 studies supported it as a sign of how someone is likely to do.
- Your leg hurts less. The NHS says back pain with sciatica usually isn’t as bad as the leg pain, so the leg is the one to watch.
- You can do more. You can walk further, or sit for longer before you need to move.
- Your sleep is coming back. You find a comfortable position sooner, or wake less often.
- You need less pain relief to get through the day.
Compare week to week, not day to day. A simple note each Sunday works well: your worst pain out of 10, how far down your leg it reached, and how long you could walk. Bring it to your appointment if you need one.
What are the signs it isn’t improving?
Mention these to your doctor, because they mean home care may not be enough:
- The pain hasn’t improved after a few weeks of home treatment
- It’s getting worse
- It’s stopping you doing your normal activities
- The pain is moving further down your leg
- You have new or worsening weakness or numbness in your leg or foot
What can help you recover?
The NHS advice is to carry on with your normal activities as much as you can, and not to sit or lie down for long periods. It says that even if moving hurts, it isn’t harmful and can help you get better faster.
- Start gentle exercise as soon as you can. Here are four gentle sciatica exercises to try.
- Hold heat packs to the painful areas.
- Ask a pharmacist about painkillers. The NHS says paracetamol is unlikely to help, and it isn’t clear how much anti-inflammatories such as ibuprofen help with sciatica.
- If nights are the hard part, see how to sleep with lower back pain.
What happens if sciatica lasts longer?
The NHS lists exercises and stretches, painkillers and physiotherapy as the main treatments. If pain is severe and these haven’t helped, a specialist may suggest a painkilling injection or other procedures. Mayo Clinic says surgery is usually done only for severe weakness, loss of bowel or bladder control, or pain that doesn’t improve with other treatments.
When is sciatica an emergency?
Go to the emergency department or call emergency services if you:
- Have sciatica on both sides
- Have weakness or numbness in both legs that’s severe or getting worse
- Have numbness around or under your genitals, or around your bottom
- Find it hard to start peeing, can’t pee, or can’t control when you pee, if that’s not normal for you
- Don’t notice when you need to poo, or can’t control it, if that’s not normal for you
The NHS says these could be signs of a serious back problem that needs treatment in hospital. Don’t drive yourself. Ask someone to take you, or call an ambulance, and bring your medicines.
Your next step
Write down today’s three numbers, then go for a short walk. If you have any of the emergency signs above, skip this and get help now.
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Quick questions
How long does sciatica last?
The NHS says it usually gets better in a few weeks to a few months, and sometimes lasts longer. Cleveland Clinic says it often doesn’t last longer than six weeks.
Will sciatica go away on its own?
Often, yes. Mayo Clinic says mild sciatica usually goes away over time, and Cleveland Clinic says most people feel better without needing surgery.
What are the signs sciatica is improving?
Useful signs include less leg pain, pain moving up toward your lower back, being able to walk or sit for longer, better sleep and needing less pain relief. There is no official checklist.
Can sciatica come back?
Yes. The NHS says it can return if you’ve had it before. It advises staying active and using a safe technique when lifting.
When should I see a doctor about sciatica?
See your doctor if it hasn’t improved after a few weeks of home treatment, is getting worse, or stops your normal activities. Get emergency help for sciatica on both sides, numbness around your genitals or bottom, or bladder or bowel changes.
This article is general information, not medical advice. If you’re worried about your pain, please talk to your doctor.
Sources
- NHS. Sciatica.
- NHS. Exercises for sciatica.
- Cleveland Clinic. Sciatica.
- Mayo Clinic. Sciatica: symptoms and causes.
- Mayo Clinic. Sciatica: diagnosis and treatment.
- May S, Aina A. Centralization and directional preference: a systematic review. Manual Therapy, 2012.