Sciatica basics
Sciatica Causes: Discs, Stenosis and Other Triggers
Sciatica causes include a herniated disk, spinal stenosis and injury, though often no cause is found. Sciatica is a symptom of a problem with the sciatic nerve, not a disease. Pain, numbness or tingling often runs from the lower back down one leg. Both legs, weakness or bladder changes need urgent care.
Written by the SciatiEase label deskUpdated · 4 min read
What are the most common sciatica causes?
The most common sciatica causes are a herniated disk, spinal stenosis and injury (MedlinePlus, Sciatica). Sciatica is a symptom of a problem with the sciatic nerve, not a disease itself.
Many cases have no clear cause. That can be frustrating, but it does not mean the pain is not real.
| Cause | What happens |
|---|---|
| Herniated disk | Disk material presses on a nerve root |
| Spinal stenosis | The spinal canal narrows and squeezes nerves |
| Injury | Trauma to the back, hip or pelvis |
| No cause found | Common; symptoms may still pass |
Does a disc bulge on a scan explain sciatica?
Not always. A disk bulge on a scan does not prove it is the source of your pain.
A review of 33 studies found disk bulges in 30% of 20-year-olds without back pain, rising to 84% of 80-year-olds (Brinjikji et al., AJNR 2015). The authors say many findings are part of normal aging and must be read alongside symptoms.
That is why a doctor looks at your history and exam first. A scan helps most when it fits what you feel.
Back pain is also common. In 2019, 39.0% of U.S. adults reported back pain in the past 3 months (CDC NCHS Data Brief 415). Reported sciatica rates vary widely, from 1.2% to 43%, because studies define it differently (Konstantinou & Dunn, Spine 2008).
How long does sciatica from these causes last?
Sciatica usually gets better within a few weeks to a few months, though it can last longer and can return (NHS, Sciatica). Some cases go away on their own (MedlinePlus, Sciatica).
The NHS advises staying as active as possible, doing sciatica exercises and using heat packs (NHS, Sciatica). The American College of Physicians also suggests starting with non-drug care for back pain, such as heat, massage or exercise (Qaseem et al., ACP guideline 2017).
- Keep moving within comfort.
- Use heat for sore muscles.
- See a GP if pain has not improved after a few weeks or keeps getting worse.
Keep taking prescribed medicine. A supplement does not change the cause.
SciatiEase: from $49.99 a bottle120 capsules · 1, 3 or 6 bottles · 180-day money-back guarantee
See packsWhich sciatica symptoms need urgent care?
Some symptoms need emergency care at once. They can signal cauda equina syndrome, where nerve roots at the base of the spine are squeezed (AANS, Cauda Equina Syndrome).
Sciatica in both legs, numbness around the groin or bottom, new bladder or bowel changes, weak legs, or pain after an injury.
Urgent surgery is usually the treatment for cauda equina syndrome, and acting within 48 hours helps recovery (AANS, Cauda Equina Syndrome). Do not wait for it to pass.
Our sciatica basics guide covers the nerve path and the red flags in detail. Not sure if a supplement fits you? Read who SciatiEase is for. SciatiEase is a capsule supplement, not a treatment for any cause of sciatica, and it comes with a 180-day money-back guarantee on the order page.
Order SciatiEase
Thinking of trying it? The bigger packs cost less per bottle.
Prices from the order page, October 18, 2026 (SciatiEase order page). One bottle is $69.00 plus $6.95 S&H. Every pack carries the 180-day money-back guarantee. Check your medicines first.
FAQ01
Quick answers on what causes sciatica
Can sitting too long cause sciatica?
We did not find a source in our library that links sitting to sciatica, so we make no claim. Staying as active as possible is the NHS advice for recovery (NHS, Sciatica). Ask your GP if sitting seems to worsen your pain.
Is sciatica the same as low back pain?
No. Low back pain is pain in the lower back. Sciatica is pain, numbness or tingling that often runs down one leg from a nerve problem. Reviews describe it as more persistent and severe than back pain alone (Konstantinou & Dunn, Spine 2008).
Can sciatica go away without treatment?
Yes, sometimes. MedlinePlus says it sometimes goes away on its own (MedlinePlus, Sciatica), and the NHS says it usually improves in weeks to months (NHS, Sciatica). See a GP if it has not improved after a few weeks.
Who wrote this02
Written and reviewed by
Pages built from the Supplement Facts panel, the brand pages and linked NIH, FDA, FTC, NHS and peer-reviewed sources.
Last updated . See our editorial standards and the way we check reviews. This website is run by Isciatiease, a U.S. desk for SciatiEase, not by the manufacturer or by SciatiEase Labs. Purchases made through our order links earn us a commission.
Keep reading
More about SciatiEase
U.S. desk for SciatiEase
Ready to try SciatiEase?
Check your medicines first, then pick a pack. Bigger packs cost less per bottle, and the 180-day money-back guarantee gives you time to judge it.
- Secure checkout on the brand page
- 180-day guarantee
- Ships from the U.S.
