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Lower Back

Degenerative Disc Disease

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Registered NDIS Provider
SIRA Registered Provider

You had an X-ray or MRI for your back, and the report came back saying "degenerative disc disease". It's an alarming phrase. "Degenerative" sounds like something that only gets worse, and "disease" sounds like something you've caught.

Neither word describes what's usually going on. These disc changes show up in 37% of pain-free 20-year-olds and 96% of pain-free 80-year-olds 1. Your pain is real. The scan finding just rarely explains all of it.

What's actually causing it

The discs between the bones of your spine act as shock absorbers. Each one has a tough outer shell around a soft, jelly-like centre 2. In childhood they're plump and full of water. Over the decades that water content drops, and the discs get thinner and stiffer 2. On a scan, this shows up as disc dehydration, loss of disc height or a disc bulge. Australian government health guidance calls these "normal, common age-related changes" 2.

Often they cause no problems at all. When some people do get pain, that's when the label "degenerative disc disease" tends to be used 2.

Then there's the gap between scan and symptoms. A review of 33 studies covering 3,110 people with no back pain concluded that many of these findings are likely part of normal ageing and must be read alongside the person's symptoms 1. What shows on imaging doesn't always match what you feel 1, and UK guidelines advise against routine scans for low back pain 4.

Side of the lower spine showing one thin, worn disc beside healthy discs

Degenerative disc disease or a disc bulge? How to tell the difference

They often appear on the same report, and they overlap: a bulge is one of the age-related changes 2. What separates them is what your symptoms are doing.

  • Degenerative changes most commonly cause back pain that's worse with activity or prolonged sitting 2
  • A disc protrusion (bulge or herniation) can irritate a nearby nerve, causing pain, numbness or pins and needles that travel into the leg 2

Protrusions become less likely with age, because drier discs have less soft material to push out 2. If leg symptoms are your main problem, our Lumbar Disc Bulge and Sciatica pages cover those patterns.

How it's diagnosed

You don't need a new scan to get started. A disc problem is worked out from your medical history and a physical examination 2. The history looks for risk factors and for any sign that a spinal nerve is involved 2. In the examination we check how your spine and legs move, your muscle strength and your reflexes 3.

Further tests are for two situations: symptoms that drag on past six weeks even though you've stayed active, or concern that a disc is affecting a nerve 2. When scans are ordered, part of their job is ruling out rare or serious causes such as a fracture, an infection, cancer or a narrowed spinal canal 3.

How we treat it

We start by assessing your history, how your back moves, your strength and whether a nerve is involved, because scans are often unhelpful for telling whether pain is coming from a disc 2. From there:

1
Staying active, within your limits. Bed rest usually isn't needed: most people can stay active 2, and guidelines encourage carrying on with normal activities 4. Gradually increasing activity within pain limits is the usual approach 2. We find a level you can manage now, then build on it.
2
A progressive exercise program. An exercise program for strength, flexibility and fitness is a main recommended treatment 2, and UK guidelines suggest biomechanical, aerobic or mind-body exercise, or a combination, chosen to suit you 4. Exercise Prescription & Conditioning gives you your own program, starting where your back is today.
3
Short-term hands-on treatment. A trial of massage, spinal mobilisation or manual therapy (under 12 weeks) is a recognised pain-relief option 2. We use Manual Therapy to make movement more comfortable while exercise does the longer-term work.
4
Getting back to sport. If you're aiming to get back to running, golf or the gym, Sports Physiotherapy rebuilds load to match what your sport asks of your back.

Other treatments we may use

Heat.

Heat wraps or hot packs are a simple, low-risk pain-relief option 2,3.

Medication: a real option, but not ours.

Paracetamol, anti-inflammatories and other pain medicines are part of standard management 2,3. Prescribing sits outside physiotherapy scope, so talk to your GP about them.

Surgery, and what the evidence shows.

In severe cases, surgery to fuse two vertebrae may be considered, but severe cases are uncommon 2. One long-term follow-up of three trials compared fusion with an intensive exercise and cognitive-behavioural rehab program in 473 people with chronic low back pain. After about 11 years, disability was no different between the groups 5. There are two caveats: only just over half were followed up that long, and rehab was about equal to surgery, not better 5. If your pain has become persistent, our Chronic Pain Management program works along similar lines.

Claims that exercise "regenerates" discs.

That idea rests on animal studies, not proven results in people 9. We recommend exercise to manage pain and keep you moving 2,4, not to change your scan.

Your recovery path: Reset, Rebuild, Return

With degenerative disc disease the scan is unlikely to change, so The Well Motion Recovery Path™ is measured on what your back can do. You move up a phase on function, not on a date.

  • Reset: the first weeks. Staying active within your limits, heat, and a short trial of Manual Therapy to make movement easier 2. Expect good days and bad days, not a straight line. We move you on once you can get through an ordinary day without the pain building.
  • Rebuild: the longest phase. Your Exercise Prescription & Conditioning program adds strength, flexibility and fitness in steps 2, and hands-on treatment drops away. Expect some soreness as the load goes up. We move you on when your back does what your daily tasks ask of it.
  • Return: back to whatever the pain took away: a full work day, the garden, lifting a grandchild, sport. We test those tasks at the load you need. You leave with a program to keep up and a plan for flare-ups.

How long it usually takes. No study gives a figure for degenerative disc disease by name. Across 33 cohorts of people with low back pain, pain fell most in the first six weeks and more slowly after that 10. Where pain was already persistent, average scores fell from 51 out of 100 to 33 at six weeks and 23 at one year 10. These are averages from observation, not a promise.

Reducing the risk of flare-ups

No trial has tested prevention for degenerative disc disease by name. The trials are in low back pain generally, so that's what these rest on:

  • Walk, and build it up. A trial followed 701 Australian adults who'd just got over a bout of low back pain. Half got a walking and education program that built up over six months, with six physio sessions. They went a median of 208 days before pain next limited their activity, against 112 days for the group left alone 6.
  • Pair exercise with understanding your back. Across 21 trials, exercise combined with education cut the risk of a new episode of back pain by 45%. Education on its own made no difference, and neither did back belts or shoe insoles 7.
  • Sit less, and quit if you smoke. A 2026 pooled analysis of genetic studies tied more TV time, smoking and a higher body mass index to disc degeneration itself 8. That shows a link. It doesn't show that changing them protects your discs.

When to get it checked properly

Call 000 and ask for an ambulance if you have back pain and have lost feeling or movement in your limbs, or have problems controlling your bowels or bladder 3.

Go to the emergency department immediately if your back pain comes with any of these 3:

  • a fever
  • trouble controlling your urine or bowel motions
  • numbness in your genital area

Difficulty moving an arm or a leg, or numbness in an arm or leg, with none of the signs above: call us the same day. We assess it and tell you plainly if it needs a hospital.

Book an assessment with us if:

  • the pain interferes with your usual activities or hasn't improved after a few weeks 3
  • the pain is worse at night 3
  • you have numbness, pins and needles or weakness in a leg 2

See your GP if you've had unexpected weight or appetite loss, or you've had cancer before 2.

These situations are uncommon. For most people, this diagnosis is the start of a plan, not a warning sign.

Your first appointment

We start by listening: how it began, what makes it worse, and what it's stopping you from doing. Then we examine the area, explain what we find in plain English, and agree a plan with you. Your first visit is 40 minutes at Engadine and 30 minutes at our other clinics.

We see patients at Engadine, Mount Annan, Narellan and Appin, and at home through our mobile physiotherapy service. If you have private health cover, here's how health fund rebates work for physiotherapy.

FAQs

Is walking bad for degenerative disc disease?

None of our sources suggests it is. Keeping active is a recommended treatment 3, and regular walking is named as something that may help strength and flexibility in people with back problems 2. Set the pace and distance by what your back tolerates, and build up gradually 2.

What are the symptoms of moderate degenerative disc disease?

Mostly back pain that's worse with activity, prolonged sitting or repeated bending, or with coughing, sneezing or straining 2. An irritated nerve can add leg pain, numbness or pins and needles 2. A "moderate" grading on a scan doesn't predict how much pain you'll have 1.

Can you fully recover from degenerative disc disease?

The scan changes are a normal part of ageing 1,2, so we won't promise they'll disappear. The pain and restriction are different: most disc problems resolve without specific treatment 2 and usually improve by themselves 3. Recovery means getting back to what you want to do, not a different-looking MRI.

What worsens degenerative disc disease?

Prolonged sitting, repeated bending, and coughing, sneezing or straining can aggravate symptoms, and bending while twisting increases load on the discs 2. Risk factors for disc changes include older age, higher body weight, low fitness, smoking, poor posture, diabetes and heavy lifting. Often, though, there's no recognisable risk factor at all 2.

More Lower Back conditions

If you've been handed a scan report and aren't sure what it means for your back, that's a good reason to come in.

Book an appointment at Engadine, Mount Annan, Narellan or Appin, or browse the rest of the Lower Back section of our Injury Finder.

Book an Assessment
Ahmed Elsayed, Principal Physiotherapist
Reviewed by Ahmed Elsayed Principal Physiotherapist at Well Motion

References

  1. Brinjikji W, Luetmer PH, Comstock B, et al. Systematic literature review of imaging features of spinal degeneration in asymptomatic populations. American Journal of Neuroradiology, 2015;36(4):811-816. doi:10.3174/ajnr.A4173. https://pmc.ncbi.nlm.nih.gov/articles/PMC4464797/
  2. Back pain: disc problems. Better Health Channel (Victorian Government Department of Health). Reviewed 16 March 2022. https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/back-pain-disc-problems
  3. Spinal disc problems. healthdirect (Australian Government-funded). Last reviewed November 2024. https://www.healthdirect.gov.au/spinal-disc-problems
  4. National Institute for Health and Care Excellence. Low back pain and sciatica in over 16s: assessment and management. NICE guideline NG59. Published 30 November 2016, last updated 29 July 2026. https://www.nice.org.uk/guidance/ng59/chapter/Recommendations
  5. Mannion AF, Brox JI, Fairbank JC. Comparison of spinal fusion and nonoperative treatment in patients with chronic low back pain: long-term follow-up of three randomized controlled trials. The Spine Journal, 2013;13(11):1438-1448. doi:10.1016/j.spinee.2013.06.101. https://doi.org/10.1016/j.spinee.2013.06.101
  6. Pocovi NC, Lin CC, French SD, et al. Effectiveness and cost-effectiveness of an individualised, progressive walking and education intervention for the prevention of low back pain recurrence in Australia (WalkBack): a randomised controlled trial. The Lancet, 2024;404(10448):134-144. https://pubmed.ncbi.nlm.nih.gov/38908392/
  7. Steffens D, Maher CG, Pereira LSM, et al. Prevention of Low Back Pain: A Systematic Review and Meta-analysis. JAMA Internal Medicine, 2016;176(2):199-208. https://pubmed.ncbi.nlm.nih.gov/26752509/
  8. Zhang H, Tian J, Lu Y, et al. Causal links between multi-domain risk factors and intervertebral disc degeneration: a systematic review and meta-analysis of Mendelian randomization studies. BMC Musculoskeletal Disorders, 2026;27(1). https://pubmed.ncbi.nlm.nih.gov/42243749/
  9. Steele J, Bruce-Low S, Smith D, Osborne N, Thorkeldsen A. Can specific loading through exercise impart healing or regeneration of the intervertebral disc? The Spine Journal, 2015;15(10):2117-2121. PMID 26409630, via PubMed. https://doi.org/10.1016/j.spinee.2014.08.446
  10. Costa LCM, Maher CG, Hancock MJ, McAuley JH, Herbert RD, Costa LOP. The prognosis of acute and persistent low-back pain: a meta-analysis. CMAJ, 2012;184(11):E613-624. PMID 22586331. https://pubmed.ncbi.nlm.nih.gov/22586331/