Fibromyalgia
Red light therapy for fibromyalgia
Evidence on low-level laser therapy and phototherapy for fibromyalgia symptoms.
Study count
The cited meta-analysis included nine RCTs with 325 fibromyalgia patients.
Evidence grade
low
Panel relevance
partially-replicable
Bottom line
Fibromyalgia should be written as exploratory supportive evidence, not a proven home-panel treatment.
Consensus: A positive signal exists, but study quality and protocol heterogeneity keep certainty low.
What the studies found
- LLLT improved Fibromyalgia Impact Questionnaire scores, pain, tender points, fatigue, stiffness, depression, and anxiety versus placebo.
- The review noted low-to-middle methodological quality.
- Protocol differences across laser type, exposure time, and medication status may drive heterogeneity.
Dosage and timing
| Wavelengths | Not settled nm |
|---|---|
| Irradiance | Not settled |
| Fluence | Not settled |
| Session time | Varied across trials. |
| Frequency | Varied across trials. |
| Duration | Varied across trials. |
| Timing | No time-of-day consensus. |
| Treatment area | Tender points or musculoskeletal targets. |
| Device types | LLLT and one combined LLLT/LED phototherapy trial. |
| Notes | Adding LLLT to standardized exercise did not consistently add benefit. |
- No single protocol is established.
- Tender-point targeting appears more evidence-relevant than nonspecific panel exposure.
- Article language should avoid implying disease modification.
Caveats
- Fibromyalgia requires individualized medical management.
- The evidence base is small and heterogeneous.
Cited peer-reviewed sources
Yeh SW, Hong CH, Shih MC, et al. Pain Physician. 2019.
A meta-analysis reported improvements in fibromyalgia impact, pain, tender points, fatigue, stiffness, depression, and anxiety versus placebo laser.
Last reviewed: 2026-06-15