By Maria Josefina Canepa Bustos

MSc Senior Musculoskeletal Physiotherapist · Registered with the AHPRA (PHY0002918524)

Maria Josefina Cánepa Bustos is a Senior Musculoskeletal Physiotherapist specialising in sports and paediatric musculoskeletal rehabilitation, with eight years of clinical experience across private practice, sports clubs, and academic settings. Holds a Master of Science in Advanced Professional Practice in Paediatric Musculoskeletal Health, alongside postgraduate qualifications in therapeutic exercise and university teaching, with a focus on young athletes, injury prevention, and performance-based rehabilitation in sport settings

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Last reviewed: 15 August 2026

Sciatica: Causes, Diagnosis, and Treatment: What to Expect

Sciatica is nerve pain that starts in your lower back and travels down one leg, usually along the path of the sciatic nerve. Most people experience sharp, shooting or burning pain, often with pins and needles or numbness, and it typically improves with conservative care over several weeks to months.

Fast facts

Common symptoms: Sharp, shooting or burning pain down the leg, pins and needles, numbness, leg weakness, pain worse in the leg than the back

Who it affects: Most common between ages 30 and 60, lifetime prevalence around 10 to 40 per cent of adults, depending on definition

Typical recovery: Many episodes improve over 6 to 12 weeks with conservative care, though some develop persistent or recurrent symptoms

Treatment approach: Education, staying active, physiotherapy (manual therapy, exercise, nerve mobility work), sometimes medication or injections, surgery reserved for severe cases

What is sciatica?

Sciatica is pain that radiates from your lower back or buttock down the back or outside of your leg, following the path of the sciatic nerve. It happens when one of the nerve roots in your lower spine is irritated or compressed, usually by a disc bulge, spinal narrowing or other structural change. The pain typically follows a clear line down one leg and is often accompanied by tingling, numbness or weakness.

The sciatic nerve is the longest nerve in your body, running from your lower back through your buttock and down each leg. When a nerve root at its origin is compressed or inflamed, you feel the pain along the nerve's pathway, sometimes all the way to your foot.

According to guidance published in the BMJ (2010), sciatica should be "diagnosed primarily by history and examination, managed initially with conservative care and advice to stay active, with surgery reserved for cauda equina syndrome, severe or progressive motor deficit, or persistent disabling pain."

The most common cause is a lumbar disc herniation, where the soft inner part of a disc pushes out and presses on the nerve root. Other causes include spinal stenosis (narrowing of the canal where the nerve travels), spondylolisthesis (where one vertebra slips forward on another), facet joint enlargement, or less commonly a cyst, tumour or infection.

What sciatica feels like

The hallmark of sciatica is sharp, shooting or burning pain that travels from your lower back or buttock down the back or outside of your thigh, calf or foot. The pain typically follows a line, is usually worse in the leg than the back, and may be accompanied by pins and needles, numbness or a feeling that your leg is weak or giving way.

You might also have local low back ache, gluteal pain, difficulty standing or walking for long stretches, and increased pain when you cough, sneeze or strain. Sitting for long periods, bending forward and lifting often aggravate symptoms, while short walks, lying flat or changing position may ease them.

In the acute stage, pain is usually intense, movement is guarded and leg symptoms are prominent. You might find yourself unable to put weight on the affected leg comfortably, or you might limp to avoid the shooting pain. In the sub-acute stage, pain may reduce but stiffness, tingling or intermittent shooting pains persist. Chronic sciatica is characterised by ongoing leg pain, sensory changes and possible muscle weakness or wasting.

Right now I have two sciatica patients on my books, and they show how differently this condition can present. One is a 56 year old woman who is not especially active, occasional Pilates and a lot of walking is about the extent of it. Her pain built up gradually over a long stretch, and she put it down to simply walking more than usual. What she did not realise was that the tightness running down her lower leg was actually nerve pain, not just tired muscles. By the time she came in, her lower back was very stiff and her glute was extremely tight, feeding into each other.

The other is a 28 year old woman who does CrossFit, has scoliosis, and has managed intermittent back pain herself for years without it ever stopping her training. This time was different. She felt a jolt in her back during a clean and jerk, and then twice in that same session felt a shock of electricity run down the front of her leg to her knee. That was enough for her to stop her heavy lifts and book in straight away.

Between the two you can see the two ends of how sciatica shows up, one built slowly in someone fairly sedentary who did not recognise the nerve pain for what it was, the other happened in an instant during a heavy lift in someone who knew her own body well enough to stop immediately.

Features that help distinguish sciatica from simple back strain include leg-dominant pain, radiation below the knee, sensory change in a clear nerve pattern, and positive nerve tension tests such as straight leg raise during examination.

When to seek urgent help

Certain symptoms require prompt medical assessment. Seek immediate help if you develop new or rapidly worsening leg weakness, loss of bowel or bladder control, numbness around your saddle area (the region that would sit on a bicycle seat), severe unrelenting night pain, unexplained weight loss, systemic illness or a history of significant trauma. These red flags may indicate cauda equina syndrome, a serious condition requiring urgent surgical decompression, or other serious underlying causes.

What causes sciatica and who is at risk

Sciatica occurs when a nerve root in your lower spine is compressed or irritated. The most common cause is a lumbar disc herniation. Other causes include spinal stenosis, spondylolisthesis, facet joint enlargement, or less commonly a cyst, tumour or infection.

Modifiable risk factors include prolonged sitting, sedentary lifestyle, poor physical conditioning, smoking and obesity, each of which is associated with disc degeneration and back pain. Occupational exposures such as frequent heavy lifting, awkward trunk rotation, whole-body vibration and sustained postures are relevant in Australian contexts such as mining, agriculture, construction, transport driving and some healthcare roles. High-load sports involving repetitive flexion and rotation, such as rowing, cricket fast bowling and certain gym activities, may also contribute.

Non-modifiable factors include increasing age, with peak risk in middle age, and a history of previous episodes of low back pain or sciatica. Genetic influences on disc structure and degeneration play a role, although individual genetic markers are not routinely assessed in clinical practice.

Common triggers are minor lifting incidents, bending to pick up objects, sudden twists, or sometimes no clear event. Symptoms are frequently aggravated by sitting, driving, bending, lifting, coughing or sneezing, and eased by short-distance walking, lying flat or changing position.

In a working-age population sample, lifetime prevalence of sciatica was reported at 39.4 per cent, increasing with age, illustrating the substantial burden and age-related increase in sciatica (Leung et al., 2009). The condition is most frequent between the ages of 30 and 60 years, aligning with peak disc herniation risk.

How sciatica is treated

For most people with sciatica, first-line management is conservative. Core elements include clear education about the condition, reassurance about natural recovery potential, and advice to remain as active as pain allows rather than prolonged bed rest. Physiotherapists typically assess movement, nerve mobility and functional capacity, then tailor exercise programmes that may include graded walking, trunk stabilisation exercises, hip and lumbar mobility work, and neural mobilisation techniques where appropriate.

"The first thing I always explain is what's actually happening, this is nerve pain, it starts at the back and travels down into the leg and sometimes the foot. The more irritated the nerve is at the source, the further down the leg it refers," says Maria Josefina Canepa Bustos, MSc Senior Musculoskeletal Physiotherapist.

What I am always checking for as we go is whether the problem is centralising, meaning the pain is retreating back towards the spine rather than pushing further down the leg. That is the sign I want to see. If a patient comes back and tells me the back pain and glute tightness are still there but it is no longer travelling as far down the leg, that is real progress, even though it might not feel like it to them since the back pain has not gone yet. The opposite pattern, pain spreading further down the leg, tells me we need to change tack.

Treatment itself is usually a combination rather than one single technique. I work on the facet joints (the small joints at the back of your spine that can become stiff or irritated), the surrounding muscles, and use nerve slider exercises to help the nerve move more freely through its pathway. These are gentle movements designed to help the nerve glide smoothly rather than getting stuck or irritated. I will often include dry needling in the affected areas, and postural correction and education are a constant thread through it all, since a lot of this condition is about how someone has been loading their spine day to day, at a desk, under a barbell, or just on their feet.

With my CrossFit patient, that combination had her leg pain settled within two sessions, and I am now shifting focus to the back and glutes, which is exactly the centralising pattern I want to see.

Manual therapy such as joint mobilisation or manipulation and soft tissue techniques may be used to address pain and movement restriction. Adjuncts such as electrotherapy, traction, taping and acupuncture are sometimes employed as part of a broader active rehabilitation plan rather than stand-alone treatments.

Pharmacological management is directed by medical practitioners and may involve paracetamol, non-steroidal anti-inflammatory drugs, short courses of opioids, or neuropathic agents in line with clinical guidelines. Epidural steroid injections can provide short-term relief in selected patients with significant radicular pain.

Referral for surgical opinion is considered when there is cauda equina syndrome, progressive or severe motor deficit, or persistent disabling sciatica despite adequate conservative management over several weeks to months. Procedures such as microdiscectomy aim to decompress the affected nerve root.

Different approaches at Physio K

Physiotherapy and massage therapy both play a role in managing sciatica, and the approaches complement one another.

A physiotherapist will assess your movement, nerve mobility and functional capacity, then work on the joints, muscles and nerve pathways. Treatment typically includes manual therapy on the spine and pelvis, nerve slider exercises to help the nerve move more freely, dry needling to release tight muscles, and a tailored exercise programme to address stiffness, strength and posture. The focus is on identifying what is driving the nerve irritation and progressively restoring normal movement and function.

A massage therapist focuses on releasing tight muscles and soft tissues that may be contributing to or aggravating the nerve irritation. Techniques such as deep tissue massage, trigger point release and myofascial release can help reduce muscle tension in the lower back, glutes and hamstrings, which often become tight and painful in sciatica. Massage can ease discomfort, improve circulation and support the body's natural healing process.

The two approaches work well together: physiotherapy addresses the underlying mechanical and movement drivers, while massage provides symptomatic relief and helps maintain tissue flexibility between physiotherapy sessions.

What the research shows

The evidence supports conservative care as the first-line approach for most people with sciatica. According to guidance published in the BMJ (2010), sciatica should be "diagnosed primarily by history and examination, managed initially with conservative care and advice to stay active, with surgery reserved for cauda equina syndrome, severe or progressive motor deficit, or persistent disabling pain."

Guideline recommendations from the Dutch College of General Practice, summarised in the same BMJ review, recommend conservative care, patient education, advice to stay active and analgesia for persistent leg-dominant pain without red flags in the first 6 to 8 weeks, with no imaging required. If symptoms do not improve after 6 to 8 weeks of conservative care, referral to a specialist is considered. Immediate emergency referral is required for cauda equina syndrome (bladder or bowel disturbance, saddle numbness), and urgent referral within a few days for acute severe or progressive motor weakness.

Prognosis is generally favourable, with many acute episodes improving over 6 to 12 weeks, although a proportion experience recurrent or chronic symptoms. In a working-age population sample, lifetime prevalence of sciatica was reported at 39.4 per cent, increasing with age, with 60 per cent female participants and mean age 42 years, illustrating substantial burden and age-related increase in sciatica (Leung et al., 2009).

A multicentre trial published in the Journal of the Royal Society of Medicine (1984) involving 322 outpatients with sciatic symptoms found that traction, exercises, manipulation and corset showed short-term benefit but no detectable long-term advantage at four or sixteen months compared with each other. This indicates that active physiotherapy offers limited long-term benefit for sciatica when measured as a single modality in isolation, but the study predates modern multimodal rehabilitation approaches that combine education, graded activity, manual therapy and specific exercise, which are now the standard of care.

What to expect: recovery and outlook

Most people with sciatica see meaningful improvement over 6 to 12 weeks with conservative care. The pain typically starts to ease first, followed by a gradual return of strength and function. You might notice that the pain retreats back towards your spine rather than travelling as far down your leg, which is a positive sign that the nerve irritation is settling.

In the early stages, you will likely need 1 to 2 sessions per week, with the focus on reducing pain, improving movement and teaching you exercises and strategies to manage symptoms at home. As you improve, sessions become less frequent and shift towards strengthening, restoring full function and preventing recurrence. Most people need between 4 and 10 sessions, depending on severity, how long symptoms have been present, and individual response.

Your recovery will be shaped by how well you can modify aggravating activities, stay gently active, and follow your exercise programme. Returning to work, sport and daily activities is usually gradual, with adjustments to load, posture and technique along the way.

Some people develop persistent or recurrent symptoms, particularly if there are significant structural changes in the spine or if aggravating factors are not addressed. In these cases, ongoing management focuses on load management, strengthening and self-management strategies to keep symptoms under control and maintain function.

Surgery is reserved for cauda equina syndrome, progressive or severe motor deficit, or persistent disabling sciatica despite adequate conservative management. Procedures such as microdiscectomy aim to decompress the affected nerve root and are generally effective when appropriately indicated.

Cost and funding

Physiotherapy for sciatica may be funded through several schemes. If you have a chronic condition, your GP may arrange a Chronic Disease Management Plan, which currently allows up to 5 allied health sessions per year with a Medicare rebate. A gap payment usually applies, as the rebate does not cover the full session cost. Rebate amounts change, so confirm the current amount with your GP or the clinic.

If you have private health insurance with extras cover, you may be able to claim part of the cost, depending on your level of cover and annual limits. Check with your insurer before booking.

The NDIS may fund physiotherapy for eligible participants where it is reasonable and necessary under their plan. If your sciatica is work-related and accepted by WorkCover, treatment costs are usually covered under your claim.

Confirm eligibility, current rebate amounts and any out-of-pocket costs with your GP, insurer, plan manager or the clinic before starting treatment.

Common questions

Is the nerve permanently damaged?

No, in most cases the nerve is irritated or compressed, not permanently damaged. The pain, tingling and numbness you feel are signs of nerve irritation, which usually settle as the pressure on the nerve reduces. Permanent nerve damage is rare and typically only occurs if there is severe, prolonged compression or if cauda equina syndrome is not treated urgently. The goal of treatment is to reduce the irritation, restore movement and allow the nerve to recover.

Should I rest or keep moving?

You should keep moving. Prolonged bed rest is not recommended and can actually slow recovery. Gentle activity such as short walks, changing position regularly and avoiding prolonged sitting or standing helps reduce stiffness and supports healing. We tailor your activity level to what you can tolerate, using pain as a guide: mild discomfort is usually safe, but sharp or worsening pain that spreads further down your leg is a signal to ease off. Movement is part of the treatment, not something to avoid.

How long will it take to get better?

Most people see meaningful improvement over 6 to 12 weeks with conservative care. Early on, the focus is on reducing pain and improving movement, and you will likely need 1 to 2 sessions per week. As symptoms settle, sessions become less frequent and shift towards strengthening and preventing recurrence. Some people improve faster, others take longer, depending on severity, how long symptoms have been present, and how well you can modify aggravating activities. If progress stalls or symptoms worsen, we reassess and adjust the plan, and consider referral if needed.

Will I need surgery?

Surgery is not needed for most people with sciatica. It is reserved for cauda equina syndrome (loss of bowel or bladder control, saddle numbness), progressive or severe motor weakness, or persistent disabling pain despite adequate conservative management over several weeks to months. If your symptoms improve with physiotherapy, education and activity modification, surgery is not necessary. We monitor your progress closely and refer you for a surgical opinion if red flags develop or if conservative care is not helping after a reasonable trial.

Reviewed by Mark Howlin. Mark Howlin is an Associate Physiotherapist at Physio K, specialising in sporting injuries and post-operative rehabilitation, with advanced dry needling training from Ireland and Sydney. Across six years of clinical practice in Ireland and Australia, he has developed particular expertise in chronic conditions such as anterior knee pain and Achilles tendinopathy, and acute lower limb muscle strains, using an integrated approach combining manual therapy, dry needling, and progressive rehabilitation. He has also served as team physiotherapist to elite GAA athletes, including during a championship-winning run at Croke Park. Registered with the AHPRA (PHY0004060355).

This article is for general information only and is not a substitute for personal medical advice. If you have concerns about your health, please consult a qualified clinician or your GP.