Sciatica describes pain that travels along the path of the sciatic nerve, from the lower back through the buttock and down the leg, and it usually results from irritation or compression of a nerve root in the lower spine. The good news is that most sciatica improves with time and the right exercises, and surgery is needed only in a small minority of cases.
This guide covers exercises commonly used to manage sciatica, when they help and when they do not, and the warning signs that mean you should see a clinician rather than exercise through it.
What sciatica actually is
Sciatica is a symptom, not a diagnosis in itself. The most common underlying cause is a disc bulge or herniation pressing on a nerve root, though it can also result from spinal stenosis, or occasionally from muscular compression of the nerve, sometimes described as piriformis syndrome.
Getting the cause right matters, because the exercises that help one cause can aggravate another. This is the main reason a generic exercise list found online sometimes makes things worse rather than better: it may be aimed at the wrong mechanism for your particular case.
General principles before specific exercises
Movement is usually better than rest. Historically, bed rest was recommended for back pain and sciatica. Current evidence points the other way. Staying as active as symptoms allow tends to produce better outcomes than prolonged rest, and prolonged inactivity can slow recovery.
Centralisation is a good sign. If a movement makes the leg pain reduce while back pain increases, or the pain retreats up the leg toward the spine, that is generally considered a positive sign called centralisation. If a movement sends pain further down the leg or into the foot, that is generally an unfavourable sign, and worth stopping.
Some discomfort is not the same as harm. Nerve pain can be genuinely unpleasant, and some exercises are expected to provoke it briefly. The distinction that matters is between short-lived, tolerable discomfort during a movement that settles afterwards, versus pain that worsens progressively or leaves you worse than before you started.
Commonly used exercises
Knee to chest stretch
Lying on your back, gently draw one knee toward your chest, holding lightly for 20 to 30 seconds. This can help ease pressure on the lower spine. If it increases leg pain, stop and try something else.
Piriformis stretch
Lying on your back with knees bent, cross the affected ankle over the opposite knee and gently draw the uncrossed leg toward your chest. This targets the piriformis muscle, which sits close to the sciatic nerve and can contribute to symptoms in some presentations.
Nerve glides (sciatic nerve mobilisation)
A gentle technique involving controlled movement of the leg and ankle, intended to help the nerve move more freely within surrounding tissue rather than to stretch it forcefully. This is a more specific technique and is best learned from a physiotherapist first, since incorrect technique can aggravate symptoms.
Cat-cow (spinal mobility)
On hands and knees, gently alternating between arching and rounding the spine. Useful for general mobility, and often well tolerated.
Press-ups / prone extension
Lying face down and gently pressing the upper body up while keeping the hips on the floor. This is the classic exercise for centralising disc-related symptoms, but it is not right for everyone, and should be introduced carefully and stopped if it increases leg symptoms.
Walking
Often underrated. Regular, tolerable walking maintains movement and blood flow without loading the spine as heavily as sitting does, and many people find symptoms are worse after prolonged sitting than after a walk.
What to avoid, at least initially
- Prolonged sitting. Often the single biggest aggravator. Break up sitting regularly, even briefly.
- Heavy forward bending under load, such as lifting something heavy with a rounded back.
- High-impact activity during a flare, until symptoms settle.
- Pushing through sharply worsening pain. Discomfort that settles is different from pain that escalates.
Why a generic exercise sheet sometimes fails
The exercises above are commonly used, but sciatica has more than one underlying mechanism, and what helps one person can aggravate another. A disc-related presentation and a stenosis-related presentation, for example, sometimes respond in opposite directions to the same movement.
This is why assessment matters more than the exercise list itself. A physiotherapist establishes which direction of movement centralises your symptoms, then builds a programme around that, rather than working through a standard sheet and hoping.
When to seek medical attention
Seek emergency care immediately if you have:
- Numbness around the genitals, inner thighs or buttocks (saddle numbness)
- New difficulty controlling your bladder or bowels
- Severe or progressive weakness in one or both legs
These can indicate cauda equina syndrome, a rare but serious condition requiring emergency treatment to prevent permanent damage.
See your GP or a physiotherapist if:
- Pain has lasted more than a few weeks without improvement
- Pain is severe or worsening
- You have new weakness, numbness or tingling in the leg or foot
- Symptoms follow a significant injury
- You have unexplained weight loss alongside the pain
What a physiotherapy assessment adds
An assessment identifies which movements ease your specific presentation and which worsen it, tests for nerve involvement and its severity, and rules out signs that need onward referral. From there, a programme is built around what actually helps your case rather than a generic list.
Manual therapy, tailored exercise progression, and advice on activity and posture are typically combined, with the plan adjusted as symptoms change.
Frequently asked questions
How long does sciatica usually last?
Many episodes improve substantially within six weeks, though it varies considerably by cause and severity. Persistent symptoms beyond this warrant assessment.
Should I use heat or ice?
Either can help with comfort; personal preference and what works for you is a reasonable guide. Neither addresses the underlying cause.
Is walking good or bad for sciatica?
Generally good, within tolerance. Many people find walking eases symptoms compared with prolonged sitting.
Can sciatica come back?
Yes, particularly if the underlying contributing factors, such as prolonged sitting or lifting technique, are not addressed alongside symptom relief.
Do I need a scan?
Not usually, especially early on. Imaging is generally reserved for cases with red flag symptoms, that fail to improve with treatment, or where surgery is being considered.
Sciatica assessment and treatment in Chiswick
Sciatica and back pain are assessed and treated at Omnia Lifestyle in Chiswick, W4, close to Gunnersbury station. Assessment identifies which direction of movement helps your specific presentation, so exercise is targeted rather than generic.
Read more about sciatica, explore physiotherapy, or book an assessment.
This article is general information, not medical advice. If you have any of the emergency warning signs listed above, seek immediate medical attention.
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