Sciatica Myths: Is Your Leg Pain Really Coming From a Disc?
Pain in your buttock, a burning line down the back of your thigh, maybe pins and needles in your foot. Someone at work tells you it is a slipped disc and you will need surgery. A friend says it is just a tight piriformis. Both cannot be right. Leg pain is one of the most misunderstood problems we see at PHYZFIT Bexley North and Marrickville, and the myths often cause more worry than the pain itself. Here is how to tell what is really going on.
Short Answer
"Sciatica" is a description, not a diagnosis. True sciatica (lumbar radicular pain) comes from an irritated nerve root in the lower back, most often from a disc, and usually causes leg pain that is worse than the back pain, travels below the knee and may come with pins and needles, numbness or weakness. But plenty of leg pain is not a nerve at all. It can be referred pain from the back joints or sacroiliac joint, deep buttock pain around the piriformis, narrowing of the spinal canal (stenosis) in older adults, or the hip. The good news is that most sciatica improves over weeks to months with the right guidance, staying active and a graded exercise plan.
Below we bust the most common sciatica myths, explain the clues that point toward a disc or away from one, and show how our team at PHYZFIT works out which one you have.
What are the biggest sciatica myths?
- Myth: "My disc has slipped out." Discs do not slip in and out of place. A disc can bulge or herniate and irritate a nearby nerve, and that tissue can settle and even shrink over time. Many disc herniations reduce in size on their own over months
- Myth: "All leg pain is sciatica." Leg pain can come from joints, muscles, tendons, the hip or narrowing of the spinal canal. Each one needs a different plan
- Myth: "I need a scan straight away." Australian and international guidelines do not recommend routine scans for sciatica without red flags. MRI often shows disc bulges in people with no pain at all, so a scan can create worry without changing the plan
- Myth: "Bed rest is best." Staying as active as you comfortably can is linked with better recovery than bed rest. Short breaks are fine, long stretches in bed are not
- Myth: "It is always piriformis, just stretch it." Deep buttock pain is real, but it is far less common than nerve root irritation from the back, and stretching alone rarely solves either
- Myth: "Sciatica means surgery." Most people improve without surgery. Surgery is an option for a smaller group with severe, persistent or worsening nerve symptoms, and that is a conversation with a specialist
How do I know if my leg pain is coming from a disc?
No single sign proves it, but these clues together point toward a nerve root being irritated, most often by a disc:
- Leg pain is worse than back pain, sometimes with very little back pain at all
- It travels below the knee, often into the calf, foot or toes, following a fairly consistent strip
- Nerve type sensations: burning, electric, shooting, pins and needles or numbness
- Sitting, bending forward, coughing or sneezing can make the leg pain spike
- Testing nerve sensitivity (for example a straight leg raise) reproduces your leg symptoms
- Changes in reflexes, sensation or strength in one leg on examination
A careful physio examination checks all of this, including strength, sensation and reflexes, so we know whether a nerve is involved and how much.
What else can cause sciatica like leg pain?
Disc related nerve root pain
The true "sciatica". Leg dominant pain below the knee, often with pins and needles or numbness. Most common between about 30 and 50.
Somatic referred pain
The joints, discs and muscles of the lower back can refer a deep, dull, hard to pinpoint ache into the buttock and thigh, usually above the knee, without numbness or weakness.
Deep buttock pain (piriformis)
Pain sitting deep in the buttock, worse with prolonged sitting and pressure, with tenderness around the piriformis. Back movements usually do not change it much.
Lumbar spinal stenosis
More common past 60. Heavy, tired or tingling legs when walking or standing, eased by sitting or leaning forward on a shopping trolley.
Sacroiliac joint pain
Pain over the back of the pelvis that can spread into the buttock and thigh, often worse rolling in bed, climbing stairs or standing on one leg.
Hip and gluteal causes
Hip joint problems often cause groin or front of thigh pain, while gluteal tendon pain sits over the outer hip. Both get mistaken for sciatica.
Leg pain that comes on with walking and eases as soon as you stop and stand still can also come from reduced blood flow in the legs. If that sounds like you, especially if you smoke or have diabetes, see your GP.
Not sure what is causing your leg pain?
A thorough physio assessment can tell nerve pain from referred pain and give you a clear plan.
What can I do for sciatica at home?
While you wait for your assessment, these simple steps help most people with sciatica and referred leg pain:
- Keep moving. Short, frequent walks are often better tolerated than one long one
- Change position regularly. If sitting flares your leg, break it up every 20 to 30 minutes
- Find your easing positions. Lying on your back with knees bent or your calves resting on a chair often settles nerve pain. With stenosis, sitting or leaning forward usually helps
- Gentle movement over aggressive stretching. Hard hamstring or piriformis stretches can irritate an already sensitive nerve
- Sleep setup. A pillow between your knees on your side or under your knees on your back
- Medication advice comes from your GP or pharmacist. Ask them what is right for you
- Stay connected with work and life where you can. Modified duties usually beat complete time off
How does PHYZFIT treat sciatica and leg pain?
Our physio team (Julian De Rosa, Ari Moushis and Sam Nunan) assesses and treats sciatica and referred leg pain every week. A first appointment includes a detailed history, a full spine, hip and pelvis assessment, a neurological screen of strength, sensation and reflexes, and a clear explanation of what we think is driving your symptoms.
Many people with disc related sciatica notice meaningful improvement within 6 to 12 weeks, although nerve symptoms such as numbness can take longer to fully settle. Referred and deep buttock pain often settles sooner. Everyone's timeline is different.
Typical treatment approach
- Weeks 1 to 2 (settle): education and reassurance, finding easing positions, hands on treatment for short term relief, gentle nerve mobility, walking plan and work or sleep modifications
- Weeks 2 to 6 (restore): graded movement of the spine and hips, progressive trunk, glute and leg strengthening, and gradual return to sitting, driving and lifting
- Weeks 6 to 12 (build): heavier strength work, return to gym, sport or physical work, and confidence with bending and lifting
- Weeks 12 and beyond (resilience): a maintenance program and a flare up plan so you know exactly what to do if it grumbles again
If your symptoms are severe, not improving, or your nerve signs are changing, we will work with your GP about further investigation or a specialist opinion.
What should I NOT do with sciatica?
- Stay in bed for days. It tends to slow recovery
- Stretch hard into nerve pain. Aggressive hamstring and piriformis stretching can flare an irritated nerve
- Read your MRI report alone and panic. Words like "degeneration" and "bulge" are common findings in people without pain
- Sit for hours without a break, especially in a low car seat or on the couch
- Assume it is piriformis and foam roll your buttock for weeks without a proper diagnosis
- Ignore changes in strength or sensation. These need to be checked
⚠ Go to an emergency department immediately if you have
- Numbness or altered feeling in the saddle area (around the genitals, anus or inner thighs)
- New difficulty passing urine, loss of bladder or bowel control, or new constipation you cannot explain
- New sexual dysfunction alongside back or leg pain
- Sciatica in both legs at once, or rapidly worsening weakness such as a foot that slaps or drags
See a GP or physio promptly if you have
- Back or leg pain with fever, feeling unwell or a history of cancer
- Unexplained weight loss or severe pain at night that does not ease with rest or position
- Pain after a significant fall or accident
- Steadily increasing numbness or weakness in one leg
How long does sciatica take to settle?
- Disc related sciatica: most people improve substantially over 6 to 12 weeks, with some taking several months
- Somatic referred pain from the back: often 4 to 8 weeks
- Deep buttock (piriformis) pain: often 4 to 8 weeks
- Lumbar spinal stenosis: ongoing management, with physio focused on walking tolerance, strength and function
- Sacroiliac joint pain: 4 to 10 weeks
We support patients across Bexley, Kingsgrove, Beverly Hills, Bardwell Park, Earlwood, Rockdale, Kogarah and Hurstville from Bexley North, and Marrickville, Newtown, Enmore, Dulwich Hill and Petersham from Marrickville.
Frequently asked questions about sciatica
Not usually at first. Guidelines recommend a scan when there are red flags, when nerve signs are getting worse, or when symptoms are not improving after a good period of care and injections or surgery are being considered. Your physio and GP can help decide if and when it is needed.
Not quite. Piriformis or deep gluteal pain can irritate the sciatic nerve in the buttock, but it is much less common than nerve root irritation in the lower back. A physio assessment helps tell the two apart, because the treatment is different.
Discs can settle, and many herniations shrink over several months without surgery. Even when a scan still shows a bulge, symptoms often improve as the nerve becomes less sensitive and you get stronger.
Usually no. Modifying exercise is better than stopping. Walking, gentle mobility and progressive strength work are part of recovery. Your physio will tell you which activities to ease off for now.
Surgery may be discussed when there is severe or worsening weakness, emergency symptoms, or disabling leg pain that has not improved after a solid period of quality conservative care. We will refer you to your GP or a specialist if that is the case.
Yes. Medicare can cover up to 5 sessions per calendar year under a GP Chronic Condition Management Plan if you are eligible. Private health Extras rebates are processed through HICAPS on the day. Workers Compensation, CTP and NDIS (plan managed and self managed only) are all accepted.
Ready for Us to Help You With Your Pain?
If leg pain or sciatica is stopping you sitting, sleeping or working comfortably, book a physiotherapy assessment at PHYZFIT Bexley North or Marrickville with Ari Moushis, Sam Nunan or Julian De Rosa. Same day appointments are usually available and we will get you a clear plan on day one.
📍 20 Shaw Street, Bexley North 2207
📍 4 Carrington Road, Marrickville 2204 (inside World Gym)
✉ admin@phyzfit.com.au
PHYZFIT Health and Rehab | Bexley North and Marrickville, Sydney | Helping you rebuild trust in your body and live a life without limits.