Written by Kelvin Ng — Doctor of Chiropractic, Family Health Chiropractic Clinic Singapore
Sciatica is one of the most common — and most misunderstood — pain complaints we see at Family Health Chiropractic Clinic. Patients often arrive having spent weeks Googling their symptoms, alternating between rest and panic, unsure whether what they have is genuinely serious or something that will resolve on its own.
The honest answer is: it depends. Sciatica ranges from a minor, self-limiting irritation to a persistent, debilitating condition that significantly limits daily life. What matters most is understanding what’s driving it — because the right approach depends entirely on the underlying cause.
This guide covers what sciatica actually is, what causes it, when to seek help, and what chiropractic assessment and care can offer.
What Is Sciatica?
The sciatic nerve is the longest nerve in the body. It originates from several nerve roots in the lower lumbar spine (L4, L5) and sacrum (S1, S2, S3), merges into a single nerve that runs through the deep gluteal muscles, and then travels down the back of each thigh, through the knee, and all the way into the foot.
When this nerve is compressed, irritated, or inflamed anywhere along its path, the result is sciatica: a pattern of pain, numbness, tingling, or weakness that follows the nerve’s route — typically from the lower back or buttock, down through the back of the leg, sometimes reaching the calf or foot.
Sciatica is not a diagnosis in itself — it is a symptom pattern. The word describes where it hurts and how it feels, but it says nothing about why it’s happening. That distinction matters, because the cause determines the care.
What Does Sciatica Feel Like?
The classic presentation is a sharp, burning, or shooting pain that starts somewhere in the lower back or deep in the buttock and travels down the back of one leg. Some people describe it as an electric shock sensation. Others describe a constant, dull ache in the leg with sharper flares when they move in certain directions.
Associated symptoms often include:
- Tingling or pins and needles down the leg or into the foot
- Numbness in the thigh, calf, or foot — sometimes in a specific strip or patch of skin
- Weakness in the leg or foot (difficulty dorsiflexing the foot, for example)
- Pain that worsens when sitting for extended periods — a very common pattern for Singapore desk workers
- Pain that worsens with certain movements: forward bending, coughing, sneezing, or straining on the toilet
- Some relief when walking or lying flat, but not always
Sciatica is almost always one-sided. Bilateral sciatica — both legs simultaneously — is uncommon and warrants more urgent assessment, as it can indicate central canal stenosis or, rarely, cauda equina syndrome (see below).
What Causes Sciatica?
The sciatic nerve can be compressed or irritated at several points. The most common causes we see in our Singapore practice:
1. Lumbar Disc Herniation
The most frequent cause. When the inner material of an intervertebral disc pushes outward through a tear in its outer wall, it can press directly on one of the nerve roots that form the sciatic nerve. This is what most people mean when they say they have a slipped disc. It is particularly common at the L4–L5 and L5–S1 levels, and it often develops gradually from sustained pressure — long hours seated, poor lifting mechanics, or accumulated micro-trauma from repetitive movement.
2. Piriformis Syndrome
The piriformis is a small muscle that sits deep in the gluteal region, and in most people the sciatic nerve passes either underneath it or through it. When the piriformis becomes tight, overworked, or spasmed — which is extremely common in people who sit for long hours or in those with hip weakness — it can compress the sciatic nerve directly. This is sometimes called “deep gluteal syndrome” and is distinct from disc-related sciatica, though it can feel identical from the outside.
3. Lumbar Spinal Stenosis
Stenosis refers to a narrowing of the spinal canal, which can compress the nerve roots as they exit. It develops gradually, typically in people over 50, and is associated with degenerative changes in the vertebrae and facet joints. The symptom pattern often includes leg pain and weakness that is worse when walking or standing (especially with the spine extended) and relieves when sitting or bending forward — a pattern sometimes called neurogenic claudication.
4. Degenerative Disc Disease and Facet Arthropathy
As intervertebral discs lose height over time, the foraminal space — the opening through which nerve roots exit the spine — narrows. Combined with hypertrophy of the facet joints, this can produce chronic, low-grade irritation of the nerve roots, often presenting as a persistent, achy sciatica rather than the sharp, acute pattern of a disc herniation.
5. Spondylolisthesis
When one vertebra slips forward relative to the one below it, it can narrow the foraminal opening or directly compress a nerve root. This is more common in active individuals and those with a history of back pain since their younger years.
When Is Sciatica an Emergency?
Most sciatica is not an emergency. However, some symptoms warrant urgent — same-day — medical assessment, as they can indicate cauda equina syndrome, a rare but serious condition in which the bundle of nerve roots at the base of the spinal cord is severely compressed:
- Loss of bladder or bowel control, or difficulty initiating urination
- Numbness or altered sensation in the groin, inner thighs, or saddle area (the area that would contact a saddle when riding)
- Weakness in both legs simultaneously
- Progressive leg weakness that is getting rapidly worse
If you have any of these symptoms, go to an emergency department rather than booking a chiropractic appointment. Cauda equina syndrome requires surgical decompression and time is a factor.
Can a Chiropractor Help with Sciatica?
Yes — with an important qualifier: chiropractors help with sciatica that has a mechanical, spinal, or musculoskeletal cause. That covers the vast majority of cases.
The chiropractic approach to sciatica starts with a thorough assessment to identify where the nerve is being compressed or irritated, and why. That means examining your lumbar spine mechanics, the quality of movement at each spinal segment, the tension in the piriformis and surrounding hip musculature, and the neurological status of the affected leg — reflexes, sensation, and motor strength.
Once we have a clear clinical picture, care is directed at the underlying mechanical driver — not just the pain itself.
How We Approach Sciatica at Family Health Chiropractic Clinic
At Family Health Chiropractic Clinic, Dr Kelvin Ng and Dr Ashley Liew use ArthroStim instrument-assisted adjusting — a low-force, precision technique that delivers controlled, rapid impulses to specific spinal and extremity joints. It is fundamentally different from the high-velocity manual manipulation (the “cracking”) that many people associate with chiropractic, and it is particularly well-suited for sciatica management for several reasons.
When a nerve root is acutely irritated or inflamed, the surrounding muscles often go into protective spasm. High-velocity manipulation requires those muscles to be relaxed, which is difficult to achieve in an acute presentation — and the force involved can occasionally flare an already-sensitised nerve. ArthroStim works differently: its rapid, low-amplitude impulse achieves neurological reset and joint mobilisation without requiring muscle relaxation, without creating the post-adjustment soreness that some patients experience, and without the torque or rotation that can aggravate a compromised disc.
For sciatica specifically, the assessment and care typically addresses:
- Lumbar segmental dysfunction — restricted or aberrantly moving segments at L4–L5 and L5–S1 affect the foraminal space and the mechanical environment of the nerve roots that form the sciatic nerve
- Sacroiliac joint mechanics — the SI joint is a key junction between the lumbar spine and the pelvis; dysfunction here commonly accompanies and contributes to lower lumbar nerve root irritation
- Piriformis and deep hip musculature — when the mechanical cause is piriformis-driven rather than discogenic, targeted soft tissue assessment and release forms part of the management
- Pelvic alignment — asymmetrical pelvic loading alters the mechanical stress on lumbar discs and facet joints, and addressing it is often essential for lasting relief rather than symptomatic improvement that keeps recurring
We also discuss contributing factors: how you’re sitting at work, your sleep position, any activities or habits that are loading the lower spine asymmetrically, and what you can do between visits to support recovery rather than hinder it.
How Long Does Sciatica Take to Resolve?
This depends heavily on the cause and how long it has been present.
Acute sciatica from a disc herniation — particularly a first episode — often responds well and relatively quickly, with significant improvement in four to eight weeks. Some patients notice meaningful change within the first few sessions; others take longer, particularly if the disc involvement is significant or if there is established nerve sensitisation.
Chronic sciatica — symptoms lasting more than three months, or a recurring pattern over years — typically requires more sustained attention. The underlying mechanical drivers are usually more entrenched, and there is often a component of central sensitisation (where the nervous system itself has become hyperresponsive) that means pain levels don’t always map straightforwardly onto tissue findings.
What we try to give every patient at the first assessment is an honest, specific prognosis based on what we actually find — not a generic estimate. If your presentation suggests that chiropractic is not the right primary approach, we will tell you that directly and advise on the appropriate pathway.
Sciatica and the Singapore Desk Worker
A disproportionate share of the sciatica presentations we see are in people working long hours at a desk — often with inadequate lumbar support, a monitor at the wrong height, and sitting postures that load the lower spine asymmetrically for eight or more hours a day. Singapore’s working culture, combined with long commutes on the MRT (where the seated position often involves a forward-flexed spine and crossed legs), creates exactly the conditions that stress the L4–L5 and L5–S1 discs over time.
If your sciatica started or worsened around a period of increased desk work — a crunch period at the office, working from home with a poor setup, or returning to full-time office work after a period of hybrid arrangements — the relationship is probably not coincidental. Addressing the mechanical cause means addressing the sitting mechanics, not just the spine.
Our guide to back and neck pain for Singapore office workers covers this in more detail.
What to Do (and Avoid) If You Think You Have Sciatica
Keep moving. Complete bed rest is not recommended and in most cases worsens outcomes. Gentle walking, light movement, and avoiding the positions that provoke sharp pain are better than immobilising yourself.
Avoid prolonged sitting. Sitting increases intradiscal pressure and maintains the hip flexor and piriformis in a shortened position. If you need to sit, break it up frequently — stand, take a short walk, do a brief standing stretch every 30–45 minutes.
Be cautious with forward bending. If your sciatica has a disc component, repeated forward flexion — picking things up from the floor, bending to put on shoes, sustained forward posture — tends to aggravate it. Learn to hinge at the hips rather than rounding the lower back.
Avoid heavy lifting, especially with rotation. Combined lumbar flexion and rotation under load is the most reliable way to worsen a disc herniation. This is not the time for deadlifts or carrying heavy bags on one shoulder.
Don’t wait it out indefinitely. Some sciatica does resolve on its own. But if you have had symptoms for more than two to three weeks without improvement, or if neurological symptoms (numbness, weakness) are present, early assessment gives you a clearer picture and a better-informed decision about what to do next.
See Us for a Sciatica Assessment
Dr Kelvin Ng and Dr Ashley Liew are available for sciatica assessments at our clinic at 111 Somerset Road, #08-03 TripleOne Somerset, Singapore 238164 — two minutes from Somerset MRT (Exit A).
If you’re not sure whether what you have is sciatica, or whether chiropractic is the right pathway for your presentation, the assessment is the place to start. We will give you a clear picture of what’s driving the symptoms and what we can and can’t offer — including when imaging or a specialist referral is the more appropriate next step.
Book an appointment here or WhatsApp us at +65 8198 8248.
Frequently Asked Questions
Is sciatica the same as a slipped disc?
Not exactly. A slipped disc (disc herniation) is one of the most common causes of sciatica, but sciatica can also result from piriformis syndrome, spinal stenosis, facet arthropathy, or spondylolisthesis — none of which involve a herniated disc. Conversely, not all disc herniations cause sciatica; some cause only localised lower back pain. The two terms are related but not interchangeable.
Can sciatica go away on its own?
Many episodes of acute sciatica do improve without formal intervention, particularly those caused by mild disc herniations, which the body can gradually reabsorb over weeks to months. However, “going away” and “resolving the underlying cause” are not the same thing — pain can settle while the mechanical factors that produced it remain, setting the stage for recurrence. If symptoms persist beyond three to four weeks, or if neurological symptoms are present, assessment is worthwhile rather than simply waiting.
Should I get an MRI before seeing a chiropractor for sciatica?
Not necessarily. For most cases of sciatica without red flags, clinical assessment is sufficient to guide initial management. MRI is most useful when: symptoms are severe and not improving, neurological deficits (weakness, bowel or bladder changes) are present, or when surgery or injection is being considered and imaging is needed to guide that decision. If we assess you and feel imaging would change management, we will advise you accordingly and refer you appropriately.
Can chiropractic make sciatica worse?
When the assessment is thorough and the technique is appropriate for the presentation, chiropractic care carries a low risk of worsening sciatica. At Family Health Chiropractic Clinic, we use ArthroStim instrument-assisted adjusting, which is a low-force technique that avoids the high-velocity thrust or rotation that can occasionally aggravate an acutely inflamed disc. As with any intervention, there is a small possibility of a temporary flare in symptoms after a session, particularly in the first one or two visits. This typically settles within 24–48 hours.
How many sessions does it take to see improvement?
This varies considerably depending on the cause, severity, and how long symptoms have been present. For acute sciatica, many patients notice meaningful improvement within three to six sessions. Chronic or recurrent sciatica, or cases with significant nerve involvement, typically requires a longer course of care. We reassess progress at regular intervals and adjust the plan accordingly — we do not continue care that isn’t producing improvement.