Does Laser Therapy Help Chronic Low Back Pain?
29 Sept 2026
A 2026 randomised trial of 148 adults with chronic low back pain found that adding low-level laser (photobiomodulation) to a six-week exercise programme made no clinically important extra difference to pain or disability compared with a sham laser [1]. If you are choosing where to spend time and money, the evidence points first to a well-run exercise programme, with laser as an optional extra at best.
Does Laser Therapy Help Chronic Low Back Pain at a glance
- Trial: 148 adults with non-specific low back pain for 3 months or more, followed for 12 months [1].
- Result: pain was 0.4 points lower on a 0 to 10 scale with real laser than with sham laser, a gap too small and too uncertain to matter [1].
- Safety: no treatment-related adverse events were reported [1].
- Delivery: a 2026 review found online-delivered rehabilitation and in-person rehabilitation did not differ significantly, though the certainty of evidence was low [2].
- Expectations: in another trial, all groups improved after spinal manipulation whatever they were told to expect [3].
What did the laser trial test?
Researchers randomly allocated 148 adults aged 18 to 65, all with chronic non-specific low back pain lasting three months or longer, to real or sham photobiomodulation [1]. Everyone also did motor control exercise, which trains the deep muscles that steady the spine. Both groups had 12 sessions over six weeks, and neither patients, therapists nor assessors knew who had the real laser [1].
How big was the benefit?
At six weeks, the real-laser group's pain was 0.4 points lower on a 10-point scale (95% CI from 1.2 points lower to 0.4 higher). Disability on the Roland-Morris questionnaire was 0.7 points lower, again with a wide margin of uncertainty [1]. The researchers also measured a blood marker of inflammation, prostaglandin E2, and found no meaningful difference [1]. The same picture held at 3, 6 and 12 months [1].
In plain terms, the exercise programme did the work. The laser did not add anything you could reliably feel.
Does that mean photobiomodulation never works?
Not necessarily. This trial tested one protocol in one type of pain, chronic non-specific low back pain, with exercise running alongside. It does not tell us about other conditions, other laser settings, or people who cannot exercise. What it does tell us is that for this common problem, laser should not be sold as a reason to skip or shorten rehabilitation.
Is exercise at home as good as exercise in a clinic?
Many people in Delhi lose hours travelling to appointments, so this matters. A 2026 meta-analysis of 10 trials with 562 adults compared telerehabilitation with face-to-face rehabilitation when the exercise content was matched. It found no significant difference in pain or disability [2]. The authors caution against reading this as proof the two are equal, because the certainty of evidence was low for disability and very low for pain, and one study heavily influenced the result [2].
The practical point is that what you do matters more than where you do it, as long as someone checks your technique and adjusts the programme.
Do your expectations change how well treatment works?
A trial of 264 adults with chronic low back pain gave everyone six sessions of spinal manipulation. One group was also given a conditioning procedure plus positive expectations, one got positive expectations alone, and one got neutral expectations. Pain and global improvement did not differ between groups at any follow-up, but all three groups improved [3]. Positive expectations and psychosocial factors did influence outcomes in the analysis [3]. Clear explanation and steady encouragement are part of good care, but they do not replace treatment.
When should back pain be checked sooner?
See a doctor promptly, rather than waiting out a course of exercise, if back pain comes with leg weakness, numbness in the groin or saddle area, loss of bladder or bowel control, fever, unexplained weight loss, or pain after a significant fall. Pain that wakes you at night or keeps getting worse also needs a proper examination.
| Question | Finding | Certainty |
|---|---|---|
| Laser added to exercise | Negligible extra benefit at 6 weeks and over 12 months [1] | Blinded, sham-controlled trial of 148 adults |
| Online vs in-person rehabilitation | No significant difference in pain or disability [2] | Low to very low |
| Positive expectations added to manipulation | No extra benefit; all groups improved [3] | Randomised trial of 264 adults |
What recent trials suggest for chronic low back pain [1,2,3].
Getting help in Delhi
At Brain Bridge Clinic in Safdarjung Enclave, New Delhi, a back pain assessment begins with your history, a physical examination and a look at what you do through the day, because desk posture, commuting and lifting at home all play a part. Dr. Abhishek Bansal, our orthopaedic surgeon, reviews whether scans or further tests are needed, and the plan usually builds on physiotherapy and a graded exercise programme you can keep up. Other options, including photobiomodulation, are discussed honestly in light of the evidence. If back pain has lasted more than a few weeks, you are welcome to book an assessment.
Related pages: Chronic Pain, Photobiomodulation, Physiotherapy For Pain.
Frequently asked questions
Is low-level laser therapy effective for chronic low back pain?
In a 2026 blinded trial of 148 adults, adding it to exercise gave no clinically important extra benefit over sham laser [1]. Exercise itself was the main treatment.
Is laser therapy for back pain safe?
No treatment-related adverse events were reported in that trial [1]. Safe does not mean useful, though, so ask what benefit is realistic for your situation.
Can I do back pain rehabilitation online instead of visiting a clinic?
A 2026 meta-analysis found no significant difference in pain or disability between online and in-person rehabilitation with matched content, but the evidence was low certainty [2]. Supervised, tailored programmes are the safest choice.
How long does chronic back pain physiotherapy take?
The laser trial used 12 sessions over six weeks of exercise, and both groups improved over that time [1]. Your own timeline depends on your diagnosis and how consistently you exercise.
When is back pain an emergency?
Weakness in the legs, numbness around the groin, or loss of control over bladder or bowels needs urgent medical attention. Go to an emergency department rather than waiting for an appointment.
References
- Tomazoni SS, de Oliveira MFD, Schardong J, et al. Photobiomodulation therapy has a negligible effect as an adjunct to motor control exercise in people with chronic non-specific low back pain: a randomised trial. Journal of physiotherapy. 2026;72(4):271-277. doi:10.1016/j.jphys.2026.09.005. PMID 42864195.
- Liu S, Yang J, Lei B, et al. Comparative effectiveness of telerehabilitation vs. face-to-face rehabilitation in adults with chronic low back pain: a systematic review and meta-analysis of randomized controlled trials. Frontiers in public health. 2026;14:1965765. doi:10.3389/fpubh.2026.1965765. PMID 42877061.
- Nogueira Carrer HC, de Lima TC, Campanha BES, et al. Effects of Hidden Conditioning and Positive Expectations on Pain Intensity Following Spinal Manipulative Therapy: A Three-Arm Randomized Controlled Trial. European journal of pain (London, England). 2026;30(9):e70414. doi:10.1002/ejp.70414. PMID 42862041.