SCIATICA PAIN: CAUSES, SYMPTOMS AND HOW PHYSIO HELPS
If you have ever felt a sharp, burning pain shoot from your lower back through your buttock and down the back of your leg, you are not alone. Sciatica pain is one of the most common reasons Australians visit a physiotherapist, with research estimating a lifetime prevalence of up to 40 percent across the general population.
The good news is that sciatica is rarely a permanent problem. Most people recover well with the right guidance, and physiotherapy plays a central role in that process. In this guide, we explain what sciatica actually is, what causes it, where you might feel it, and how our physiotherapy team at Clinical Physio Solutions can help you get back to moving well.
What Causes Sciatica Pain?
Sciatica describes pain that travels along the path of the sciatic nerve, the longest and thickest nerve in your body. It runs from your lower back, through your hip and buttock, and down each leg. When this nerve is compressed or irritated, the result is sciatic nerve pain: a combination of sharp, burning, or shooting sensations that can extend all the way from your lower back to your foot.
It is worth noting that sciatica is a symptom pattern, not a diagnosis in itself. The pain signals that something is pressing on or irritating the nerve, and finding the underlying cause is the key to effective treatment.
Symptoms can range from a dull ache to an intense, electric shock-like sensation. You might also experience tingling, numbness, or muscle weakness in the affected leg. Some people find that certain positions, like sitting for long periods, make the pain worse.
What Causes Sciatica?
Several conditions can put pressure on the sciatic nerve. Understanding the cause of your sciatic pain helps your physiotherapist choose the most effective treatment approach.
Disc Herniation
The most common cause. When a spinal disc in the lower back bulges or herniates, it can press directly on a nerve root that forms part of the sciatic nerve. This is sometimes called a pinched nerve in lower back and typically affects the L4-L5 or L5-S1 levels.
Spinal Stenosis
Narrowing of the spinal canal, often related to age-related changes, can compress the nerve roots. This tends to affect people over 50 and may cause symptoms in both legs.
Piriformis Syndrome
The piriformis is a small muscle deep in the buttock. When it tightens or spasms, it can irritate the sciatic nerve as it passes beneath (or in some people, through) the muscle. This is a common cause of sciatica pain in buttocks that is sometimes mistaken for disc-related sciatica.
Other Causes
Less common causes include degenerative disc disease, spondylolisthesis (where one vertebra slips forward over another), bone spurs, and in rare cases, tumours or infections. Pregnancy can also trigger sciatica as the growing uterus places additional pressure on the sciatic nerve and surrounding structures.
Risk Factors
You may be more likely to experience sciatica if you have a sedentary job, spend long hours sitting, carry excess weight, perform repetitive heavy lifting, or have diabetes. Age is also a factor, with most cases occurring between the ages of 30 and 50.
Where Do You Feel Sciatica Pain?
Sciatica typically affects one side of the body. The pain usually starts in the lower back or buttock and radiates down through the back of the thigh and into the calf or foot. Depending on which nerve root is involved, the exact location can vary:
- L4 nerve root: pain and numbness along the inner shin and ankle, possible weakness when lifting the foot upward
- L5 nerve root: pain across the outer leg and top of the foot, sometimes extending to the big toe
- S1 nerve root: pain along the outer edge of the foot and sole, possible weakness when pushing off the toes
You might experience sciatica back pain concentrated in the lower spine, sciatica hip pain around the buttock and hip joint, or sciatica pain in leg that travels all the way to your ankle. Some people describe the sensation as burning, while others feel a deep, throbbing ache or sharp shooting pain. Tingling, pins and needles, and numbness are also common.
Is It Actually Sciatica?
Not all pain in the buttock or leg is sciatica. Several other conditions can produce similar symptoms, which is why a thorough assessment matters:
- Sacroiliac (SI) joint dysfunction: pain in the lower back and buttock that can refer into the groin or upper thigh, but rarely below the knee
- Hip bursitis or hip joint problems: pain on the outside of the hip that may radiate down the outer thigh
- Hamstring tendinopathy: deep buttock pain that worsens with sitting or stretching, sometimes confused with piriformis syndrome
- Referred pain from the lumbar spine: general lower back pain that radiates into the buttock without following a specific nerve path
A physiotherapist can differentiate between these conditions using specific clinical tests, saving you time and ensuring you receive the right treatment from the start.
How Is Sciatica Diagnosed?
Your physiotherapist will begin with a detailed history, asking about when the pain started, where it travels, what makes it better or worse, and whether you have any numbness or weakness. From there, a physical examination typically includes:
- Straight leg raise test: lifting your affected leg while lying on your back to see if it reproduces the sciatic pain
- Slump test: a seated test that places gentle tension on the sciatic nerve to assess nerve sensitivity
Neurological examination: checking reflexes, sensation, and muscle strength in the affected leg to identify which nerve root may be involved
Do You Need A Scan?
In most cases, imaging is not needed to diagnose or manage sciatica. Clinical guidelines recommend physiotherapy and conservative management as the first line of treatment. An MRI or CT scan may be recommended if your symptoms are severe, worsening despite treatment, or if your physiotherapist identifies signs that warrant further investigation. Your physio can guide you on whether imaging is appropriate for your situation.
How To Manage Sciatica Pain?
While physiotherapy is the most effective approach for addressing the underlying cause of sciatica, there are several things you can do at home to help manage your symptoms alongside your treatment.
Stay Active
It might feel counterintuitive, but gentle movement is one of the best things you can do for sciatic nerve pain. Prolonged bed rest can actually delay recovery. Short, gentle walks and light stretching can help reduce stiffness and keep the nerve moving freely.
Posture & Positioning
Avoid sitting for longer than 30 minutes at a time. When you do sit, keep your feet flat on the floor and support your lower back. If your sciatica flares at night, try lying on your back with a pillow under your knees, or on your side with a pillow between your knees.
How Physiotherapy Treats Sciatica Pain
Physiotherapy for sciatica pain is widely recommended as a first-line treatment. A systematic review of 18 clinical trials published in the European Spine Journal found that physiotherapy interventions can be particularly beneficial at longer-term follow-up, and research in the Journal of Orthopaedic & Sports Physical Therapy supports early physiotherapy intervention for improved outcomes.
At Clinical Physio Solutions, our approach to sciatica physiotherapy follows a progressive framework tailored to where you are in your recovery.
Assessment & Diagnosis
We start with a thorough assessment to identify the specific cause of your sciatic nerve pain. This includes the clinical tests described above, along with a review of your posture, movement patterns, and daily activities. Understanding the root cause is essential for choosing the right treatment.
Pain Relief & Manual Therapy
In the early stages, the priority is reducing pain and inflammation. Your physiotherapist may use soft tissue massage, joint mobilisation, nerve gliding techniques, and dry needling to relieve pressure on the nerve and reduce muscle guarding around the lower back and hip.
Exercise Prescription
As your pain settles, we introduce targeted exercises to restore mobility, build strength, and improve the way your body supports the spine. This typically progresses through three stages:
- Early stage: gentle nerve glides, lumbar extension exercises, and light stretching to reduce nerve sensitivity
- Mid stage: core activation, hip strengthening, and progressive loading to support the lower back
Late stage: functional strengthening, return-to-activity exercises, and long-term prevention work
Clinical Pilates
Our Clinical Pilates classes are a valuable part of sciatica recovery. Pilates-based exercises focus on deep core stability, spinal alignment, and controlled movement, all of which help take pressure off the sciatic nerve and reduce the likelihood of recurrence. Book an appointment to discuss whether Clinical Pilates is right for your recovery.
When To See a Physiotherapist
If your sciatica pain has lasted more than a few days, is affecting your ability to work or sleep, or is not responding to basic self-care, it is time to see a physiotherapist. Early intervention can shorten your recovery and help prevent the problem from becoming chronic.
Red Flags: When Sciatica is an Emergency
In rare cases, sciatica can signal a serious condition called cauda equina syndrome. Go to your nearest emergency department immediately if you experience:
- Sudden loss of bladder or bowel control
- Numbness in the saddle area (inner thighs, groin, buttocks)
- Rapidly worsening weakness in one or both legs
- Severe, unrelenting pain that does not respond to any position change
These symptoms require urgent medical attention. While cauda equina syndrome is uncommon, prompt treatment is essential to prevent lasting damage.
For all other sciatica presentations, your physiotherapist is the right starting point. At Clinical Physio Solutions, we have clinics across Sydney in Burwood, Newington, Top Ryde, and Eastgardens, making it easy to access expert care close to home. Book your appointment today.
Next Steps
Sciatica pain can be disruptive, but it does not have to control your life. With the right assessment, targeted treatment, and a clear plan for recovery, most people see meaningful improvement and return to the activities they enjoy.
If you are dealing with sciatica and want expert guidance from a team that takes the time to find the root cause, our physiotherapists at Clinical Physio Solutions are here to help. We have clinics in Burwood, Newington, Top Ryde, and Eastgardens across Sydney.
Book your appointment today and take the first step toward moving better, feeling stronger, and living pain-free.
Frequently Asked Sciatica Pain Questions
General back pain stays in the lower back and may feel like a dull ache or stiffness. Sciatica produces pain that radiates beyond the back, typically travelling through the buttock and down the leg along the path of the sciatic nerve. Tingling, numbness, and leg weakness are also hallmarks of sciatica that you would not usually see with simple back pain.
Many mild cases of sciatica improve within four to six weeks with self-care and gentle activity. However, without addressing the underlying cause, there is a higher chance of the pain returning. Physiotherapy can help speed up recovery and reduce the risk of recurrence by correcting the factors that led to the nerve irritation in the first place.
A physiotherapist is a great first point of contact for sciatica. Physiotherapists are trained to assess, diagnose, and treat musculoskeletal and nerve-related pain without a referral. If imaging, medication, or specialist input is needed, your physio can guide you on the appropriate next steps.
Sitting increases pressure on the lumbar discs and can compress the sciatic nerve or the structures surrounding it. Prolonged sitting also tightens the hip flexors and piriformis muscle, which may further irritate the nerve. Try to stand or walk for a few minutes every 30 minutes, and use a lumbar support cushion to maintain the natural curve of your lower back.
Yes, in most cases gentle walking is encouraged. Staying active helps reduce stiffness, promotes blood flow to the area, and supports recovery. Start with short, comfortable distances and gradually increase as your symptoms allow. If walking significantly worsens your pain, speak with your physiotherapist about alternative movement options.
Bibliography
Davis, D., Maini, K., Vasudevan, A. (2024). Sciatica. StatPearls. National Library of Medicine. https://www.ncbi.nlm.nih.gov/books/NBK507908/
Stafford, M.A., Peng, P., Hill, D.A. (2007). Sciatica: a review of history, epidemiology, pathogenesis, and the role of epidural steroid injection in management. British Journal of Anaesthesia, 99(4), 461–473. https://academic.oup.com/bja/article/99/4/461/305514
Fernandez, M., Ferreira, M.L., Refshauge, K.M., Hartvigsen, J., Silva, I.R.C., Maher, C.G. (2023). How effective are physiotherapy interventions in treating people with sciatica? A systematic review and meta-analysis. European Spine Journal, 32, 517–533. https://pmc.ncbi.nlm.nih.gov/articles/PMC9925551/
Konstantinou, K., Dunn, K.M. (2020). Physiotherapy management of sciatica. Journal of Physiotherapy, 66(2), 83–88. https://pubmed.ncbi.nlm.nih.gov/32291226/
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