The word gets used like a diagnosis. “You have sciatica,” the doctor says, and the conversation moves to painkillers and bed rest. But sciatica is not a disease. It’s a description — pain that travels down the sciatic nerve pathway from the lower back through the buttock and into the leg. Calling it a diagnosis is like calling “fever” a diagnosis. It tells you something is happening. It doesn’t tell you what.
That distinction matters, because the causes of sciatic pain range from completely benign to surgically urgent — and the treatment for each is different.
What’s actually behind the pain
The most common cause for sciatica is a herniated disc pressing on a nerve root in the lower spine. But “most common” is not “only.” A systematic review on sciatica epidemiology noted that prevalence estimates range from 1.6% to 43% depending on how strictly it’s defined — a gap so wide it reflects the confusion around the term itself.¹ Recent literature (2025) suggests that while low back pain affects up to 84% of the population, true sciatica is actually present in only 5% to 10% of those cases. Furthermore, the annual incidence of disc-related sciatica specifically sits
at a much narrower 2.2%. This highlights just how often the term is misapplied to general leg pain.3,4
The actual source could be any of these: a disc herniation, spinal canal stenosis, foraminal narrowing, ligament thickening, joint arthritis, piriformis syndrome, a sacroiliac joint problem, or even referred pain from the hip. In rare cases, it can be a tumour or a cyst, or — as a striking 2024 case series demonstrated — cervical spine compression mimicking sciatica like pain entirely, where patients only improved after neck surgery, not back surgery.²
This is why “you have sciatica” without further investigation isn’t enough. The treatment for a disc herniation (rest, medications, targeted injection or sometimes surgery) is completely different from the treatment for piriformis syndrome (physical therapy, medications, guided injection, no surgery) or sacroiliac joint dysfunction (different intervention- minimally invasive).
Why the label sticks — and why it shouldn’t
Part of the problem is convenience. “Sciatica” is a word patients understand, and it gives a name to a frightening symptom — that electric, shooting pain running down the leg. But the comfort of having a name can delay the search for the actual cause.
In our clinic at Gurugram —from the high-pressure corporate environments — we see professionals working long, sedentary hours who develop back pain radiating to the legs and are simply told “it’s sciatica”. Takes painkillers for months, tries physiotherapy aimed at “the back” in general. Nothing improves, because nobody identified which structure, at which spinal level, is the pain generator.
When to see a pain specialist
If your leg pain has lasted more than 4-6 weeks with conservative management, if it came with sudden weakness or numbness in the foot, or if it started after an injury — the first step isn’t more painkillers. It’s a proper clinical assessment to identify the source. A pain specialist will test specific nerve levels, correlate the findings with imaging, and sometimes use a diagnostic nerve block to confirm which structure is responsible. Once the source is identified, the treatment becomes targeted.
RED FLAG WARNING: If your “sciatica” is accompanied by “saddle anesthesia” (numbness in the groin/inner thighs) or a sudden loss of bladder or bowel control, this is a medical emergency. These are signs of Cauda Equina Syndrome and require immediate surgical intervention.
Sciatica is a clue. The diagnosis is what comes after.
Book a consultation with Dr. Ichcha Muku
Frequently asked questions
Is all leg pain sciatica?
No. Pain from the hip joint, vascular problems, spine or knee conditions can all radiate down the leg without involving the sciatic nerve.
Can sciatica go away on its own?
Many episodes can resolve within a period of few weeks to months. But if it persists, worsens, or involves weakness or numbness, it needs investigation.
Is bed rest good for sciatica?
Contrary to old advice, staying active is generally recommended over bed rest. Although, short-term rest may be needed during an acute flare. Gentle movement is better. Individualized care focusing on mobility and addressing underlying lifestyle factors offers the best prognosis for reducing long-term, painful symptoms.
What’s the difference between sciatica and radiculopathy?
Radiculopathy is the clinical term for nerve root compression causing pain, numbness, or weakness in a specific dermatome. It’s a more precise term than sciatica and identifies the mechanism.
Why did my MRI show a disc bulge but I have no pain?
This is a “specialist’s secret”: many asymptomatic people have disc bulges on MRI. This is why a clinical examination is more important than the image alone—we treat the condition, not the picture.
Key takeaways
- Sciatica is a symptom (pain along the sciatic nerve), not a diagnosis
- Causes range from disc herniation and stenosis to piriformis syndrome and sacroiliac joint dysfunction
- Effective treatment depends entirely on identifying the specific source of the nerve irritation
- Sedentary corporate lifestyles often exacerbate these symptoms, requiring targeted intervention
References
- Konstantinou K, Dunn KM. Sciatica: review of epidemiological studies and prevalence estimates. Spine, 2008;33(22):2464–2472. *(Also cited in: Lewis R, et al. The Clinical Effectiveness and Cost-Effectiveness of Management Strategies for Sciatica: Systematic Review and Economic Model. NIHR, 2011.)
- Han C, Wang J, Wang L, Gong Q, Huang W. Sciatica-like pain caused by cervical spondylotic myelopathy: four case reports and systematic review. Front Med (Lausanne). 2024;11:1429618. Published 2024 Aug 1. doi:10.3389/fmed.2024.1429618
- Bernstein, I. A., Malik, Q., Carville, S. & Ward, S. Low back pain and sciatica: summary of NICE guidance. BMJ356, i6748. 10.1136/bmj.i6748 (2017)
- Koes, B. W., van Tulder, M. W. & Peul, W. C. Diagnosis and treatment of sciatica. BMJ334, 1313–1317. 10.1136/bmj.39223.428495.BE (2007)
Pain that won’t quit deserves a second opinion.