Back Pain vs Sciatica: How to Tell the Difference
Back pain and sciatica are two of the most common reasons people visit a chiropractor — but they are not the same thing. Many people use the terms interchangeably, yet the difference matters because each condition has a different cause and responds to different treatment. In Australia, around 4 million people live with back pain at any given time, according to the Australian Institute of Health and Welfare (2022). A significant portion of those cases involve the sciatic nerve — but not all back pain is sciatica.
Understanding whether you have localised back pain or true sciatica helps your chiropractor develop the right treatment plan from the very first visit.
Key Takeaways
- Back pain stays in the lower back; sciatica travels down one leg along the sciatic nerve pathway.
- Sciatica is caused by compression or irritation of the sciatic nerve, most often from a disc bulge or herniation.
- The straight leg raise test can help distinguish sciatica from general back pain with up to 95% accuracy (BMJ, 2021).
- You can have both conditions at the same time — a disc problem can cause both local back pain and nerve pain down the leg.
- Chiropractic care is effective for both: spinal adjustments, soft tissue therapy, and rehabilitation exercises are the first-line approach before considering surgery or opioids.
What Is Back Pain?
Back pain refers to pain that originates in the muscles, joints, ligaments, or discs of the spine — and stays there. It does not travel into the buttock or leg. The lower back (lumbar spine) is the most commonly affected area, but mid-back and upper-back pain are also possible.
Common causes of localised back pain include:
- Muscle or ligament strain from lifting, twisting, or prolonged sitting
- Facet joint dysfunction (the small joints between vertebrae)
- Disc degeneration over time
- Poor posture loading the spine unevenly
Back pain typically feels like a dull ache, stiffness, or sharp pain triggered by movement. It is usually worse in the morning or after sitting for long periods, and tends to ease with gentle movement.
What Is Sciatica?
Sciatica is not a diagnosis in itself — it is a symptom caused by irritation or compression of the sciatic nerve, the longest nerve in the body. The sciatic nerve runs from the lower spine through the buttock and down the back of each leg to the foot.
When this nerve is compressed — most commonly by a disc bulge or pinched nerve in the lumbar spine — it produces a distinctive set of symptoms that travel along the nerve’s path.
Sciatica symptoms typically include:
- Sharp, shooting, or burning pain that radiates from the lower back into the buttock and down one leg
- Tingling or pins-and-needles in the leg or foot
- Numbness or weakness in the affected leg
- Pain that worsens when sitting, coughing, or sneezing
- Symptoms almost always on one side only
How to Tell the Difference
The most reliable way to distinguish back pain from sciatica is to track where the pain travels. Here is a quick comparison:
| Feature | Back Pain | Sciatica |
|---|---|---|
| Location | Lower back only | Lower back + buttock + leg |
| Pain type | Ache, stiffness, sharp | Burning, shooting, electric |
| Leg symptoms | None | Tingling, numbness, weakness |
| Side affected | Both or central | Usually one side only |
| Worse when | Moving, lifting | Sitting, coughing, sneezing |
| Cause | Muscle, joint, disc | Nerve compression |
The Straight Leg Raise Test
One of the most reliable clinical tests for sciatica is the straight leg raise (SLR) test. Your chiropractor will ask you to lie flat while they slowly raise your leg to between 30 and 70 degrees. If this reproduces your leg pain — not just back pain — it strongly suggests sciatic nerve involvement.
A 2021 systematic review published in the BMJ found the SLR test has a diagnostic accuracy of up to 0.95 (ROC curve) for identifying true lumbar nerve root compression. This makes it one of the most useful bedside tests in musculoskeletal practice.
Can You Have Both at the Same Time?
Yes — and many people do. A disc bulge in the lumbar spine can simultaneously cause local back pain (from pressure on the disc itself) and sciatic nerve pain (from the disc pressing on the nerve root). This is why self-diagnosis based on symptoms alone is unreliable.
A thorough chiropractic assessment — including orthopaedic testing, postural analysis, and neurological screening — is the most accurate way to identify exactly what is driving your symptoms.
Treatment: What Works for Each Condition
For Back Pain
- Spinal manipulation and mobilisation to restore joint movement
- Soft tissue therapy for muscle tension and trigger points
- Postural correction and ergonomic advice
- Core rehabilitation exercises
For Sciatica
- Targeted spinal adjustments to reduce nerve compression
- Flexion-distraction technique to decompress lumbar discs
- Dry needling to address associated muscle guarding
- Nerve mobilisation exercises (sciatic nerve flossing)
- Rehabilitation to strengthen the muscles supporting the lumbar spine
A 2023 study published in PLOS ONE found that patients with sciatica who received early conservative care — including spinal manipulation — were significantly less likely to be prescribed opioids compared to those who initially saw a GP only. Early chiropractic intervention matters.
For patients where conservative care is insufficient, a 2022 PubMed study found that those who had undergone prior spinal manipulation before discectomy surgery had better post-surgical outcomes than those who had not. Learn more about our approach on our evidence-based chiropractic page and our safety information page.
When Should You See a Chiropractor?
You should book an assessment if you experience any of the following:
- Back pain that has lasted more than two weeks without improvement
- Pain that travels into your buttock, thigh, or below the knee
- Tingling, numbness, or weakness in one leg
- Pain that worsens when sitting or gets you out of bed at night
- Recurring episodes of back pain that keep coming back
Early intervention produces better outcomes. The longer nerve compression goes untreated, the greater the risk of chronic pain patterns developing. Read more about what to expect on your first visit and how we structure your care plan.
Frequently Asked Questions
Mild sciatica sometimes improves within 4–6 weeks with rest and movement. However, if symptoms persist beyond 6 weeks, are severe, or include leg weakness or numbness, professional assessment is essential. Untreated nerve compression can lead to lasting nerve damage in some cases.
Yes. Chiropractic care is one of the most commonly recommended conservative treatments for sciatica. It is non-invasive, does not carry the side effects of medication, and is supported by clinical evidence. See our full safety and evidence overview for more detail.
Sciatica is a type of pinched nerve — specifically, compression of the sciatic nerve root in the lumbar spine. A pinched nerve is the broader term and can occur at any level of the spine, producing symptoms in different areas depending on which nerve is affected.
A disc bulge is often the cause of sciatica, not the same thing. When a bulging disc presses against the sciatic nerve root, it produces sciaic symptoms. Not all disc bulges cause sciatica — some only produce local back pain, and some are asymptomatic.
Not Sure If It’s Back Pain or Sciatica?
The most important step is getting an accurate diagnosis. At Kings Park Chiropractic, Dr. Brian Sin conducts a thorough assessment to identify the true source of your pain — whether that is a muscle strain, a joint problem, a disc injury, or nerve compression.
We treat patients from Kings Park, Blacktown, Rooty Hill, Doonside, and the surrounding Western Sydney area.
Book your assessment online or call us on (02) 9837 5161.