Quick answer (TL;DR)
Sciatica is pain that travels along the path of the sciatic nerve, usually from the lower back into the buttock and down the leg.
Most cases are caused by irritation of a nerve root in the lower spine, and most settle over weeks to months with time, reassurance and movement rather than rest.
Imaging often shows disc changes that are also common in people with no pain at all. Staying active and gradually loading the area is the evidence-based approach, and Pilates is well suited to that because it lets you build strength and confident movement in positions you can control. Like where else can you exercise being on your back for most of the session.
What sciatica actually is
Sciatica is a symptom, not a diagnosis. It describes pain that follows the sciatic nerve, often felt as a line of pain, pins and needles or weakness running from the lower back or buttock into the leg.
Most of the time it comes from irritation or compression of a nerve root where it leaves the lower spine, commonly from a disc that is pressing on or inflaming the nerve. Less often it comes from other sources along the nerve’s path.
The word gets used loosely. A tight, achy buttock is not automatically sciatica. True nerve pain tends to travel, and it often comes with tingling, numbness or a specific pattern down the leg.
Does a disc on the scan mean my back is damaged?
Not on its own. Disc bulges and herniations show up on scans in large numbers of people who have no pain at all, and that proportion rises with age.
This matters for how we talk to clients. A scan finding is one piece of information, not a verdict on how fragile someone is. The language we use about it changes how safe a person feels moving, and that affects their recovery.
Will it get better?
Usually, yes. Most episodes of sciatica from a disc improve over weeks to a few months, and herniated discs often shrink on their own over time. That is a genuinely reassuring thing to be able to tell someone in pain.
Recovery is rarely linear. Good days and flare days are normal and do not mean something has gone wrong.
What helps, and where Pilates fits
The current advice for most low back and radicular pain is to stay active, keep moving within tolerance, and avoid long periods of rest. Gentle, graded movement and strengthening are supported by the evidence, and reassurance is part of the treatment, not an extra.
Pilates suits this well for a few reasons. You can work in supported positions, control the load carefully, and progress in small, deliberate steps.
In practice that looks like:
- Movement that calms the area early on, such as gentle nerve mobility work and positions that ease symptoms.
- Building hip and trunk strength as symptoms settle, so the lower back is better supported in daily activities and under load.
- Returning to fuller movement gradually, so confidence returns alongside strength.
The goal is not to chase a perfect shape of the spine in the exercises. The goal is to help the person move more, fear it less, and get back to their life. If your symptoms are more about standing and walking than bending, it may also be worth reading our piece on lumbar spinal stenosis. If you would like to start this work in the studio, you can book an initial consultation.
When to refer on
Most sciatica is managed conservatively, but some signs need prompt medical assessment: progressive or significant leg weakness, numbness around the saddle area, or any change in bladder or bowel control. These are uncommon, but as instructors we send those on without delay.
Frequently Asked Questions
Is it safe to exercise with sciatica?
For most people, gentle movement within tolerance is not only safe, it is recommended. Rest for long periods tends to slow recovery. If a movement sharply increases leg symptoms, ease off it and choose something more comfortable.
Should I get a scan?
Most cases do not need imaging early on, because scan findings often do not match symptoms and can cause unnecessary worry. Your GP decides if imaging is warranted, usually when symptoms are severe, not improving, or there are red flags.
Can Pilates cure sciatica?
Pilates is not a cure, it is support. It helps you move, build strength and stay confident while the body recovers, which is what the evidence supports for most cases.
How long will it take?
Often weeks to a few months, with ups and downs along the way. Slow progress is still progress.
References
- Brinjikji W, et al. (2015). Systematic Literature Review of Imaging Features of Spinal Degeneration in Asymptomatic Populations. AJNR Am J Neuroradiol, 36(4), 811–816. PubMed
- Zhong M, et al. (2017). Incidence of Spontaneous Resorption of Lumbar Disc Herniation: A Meta-Analysis. Pain Physician. PubMed
- National Institute for Health and Care Excellence. Low back pain and sciatica in over 16s: assessment and management (NG59). nice.org.uk/guidance/ng59
Keep learning with us
If you are an instructor who wants a clearer way to reason through cases like this, this is exactly what we work through in the Pilates on George Club.