Surreal illustration of neck pain with laser and electrical symbols

Neck Pain Relief: Are Laser Therapy and Electrotherapy Right for You?

Theo Raines monogram
Theo Raines in Health & Wellness October 2026 • 4 min read.

"A closer look at the recommendations for low-level laser therapy (LLLT) and electrotherapy in treating neck pain."


Neck pain can significantly impact daily life, leading many to seek effective treatments. Clinical guidelines play a crucial role in helping healthcare professionals and patients make informed decisions about the best course of action. However, interpreting these guidelines and understanding the evidence behind them can be challenging.

Recently, recommendations regarding low-level laser therapy (LLLT) and electrotherapy for neck pain have sparked debate. Some guidelines classify treatment recommendations into three groups: "recommended," "not recommended," and "may be considered." The placement of certain treatments in the "not recommended" category has raised questions and concerns.

This article addresses the controversy surrounding LLLT and electrotherapy for neck pain, offering a clear and accessible explanation of the research and rationale behind the current recommendations. Our goal is to provide you with the information needed to discuss treatment options with your healthcare provider and make choices that align with your individual needs and preferences.

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Early Discoveries in Laser Therapy

The first medical reports on the effects of low doses of laser light on cells and tissues appeared in 1967. Professor Endre Mester at Semmelweis Hospital in Budapest reported that illuminating a shaved area on a rat’s back with a specific dose of laser light accelerated hair regrowth. The history of laser therapy also includes multiple terms for the technology, which can make its terminology confusing.

Understanding the Controversy: Why the "Not Recommended" Label?

Surreal illustration of neck pain with laser and electrical symbols

The core of the disagreement lies in how the effectiveness of LLLT and electrotherapy has been evaluated. Some argue that the summaries of effectiveness presented in research abstracts don't fully capture the nuances and cautions expressed within the full studies.

For example, while an abstract might suggest a particular quality of evidence, the full text of the review might emphasize limitations and potential publication bias. This distinction is critical because guidelines often prioritize treatments with clear benefits demonstrated by high-quality evidence compared to placebos, no treatment, or minimal interventions.

  • Abstract vs. Full Study: Abstracts can sometimes overstate the benefits of a treatment compared to the detailed findings and caveats within the full study.
  • Limitations and Bias: Many studies on LLLT and electrotherapy have limitations, such as low power or high risk of bias, which can affect the reliability of the results.
  • Patient Specificity: Some studies may not focus on the specific type of neck pain (nonspecific neck pain) targeted by the guidelines, making their results less applicable.
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Recent Reviews of High-Intensity Laser Therapy

A December 2023 meta-analysis set out to evaluate whether high-intensity laser therapy (HILT) improves pain intensity, cervical range of motion, functional activity, and quality of life in people with neck pain. Research published on April 11, 2025, examined HILT’s immediate effects in nonspecific neck pain, measuring pain, active cervical range of motion, neck-muscle stiffness, and functional disability. The supplied summaries describe these research aims and measures but do not report the results.

Limitations in the Evidence

An author response cautions that most randomized controlled trials (RCTs) were small or had low statistical power, carried a high risk of bias, and did not all study the guideline’s target group of people with nonspecific neck pain. A 2023 systematic review and meta-analysis specifically examined high-intensity laser therapy in people with neck pain, while an earlier systematic review addressed low-level laser therapy for neck pain. The supplied summaries do not provide those reviews’ findings, so they do not establish a single conclusion about effectiveness.

When considering LLLT, it’s important to note that reviews often include overlapping data. An overview of systematic reviews might summarize evidence already presented in other reviews, without adding new independent data. This means that the perceived evidence base may be smaller than it appears, with many reviews drawing from the same core set of trials.

Making Informed Decisions About Your Neck Pain Treatment

Ultimately, the decision of whether or not to pursue LLLT or electrotherapy for neck pain should be made in consultation with your healthcare provider. They can assess your individual condition, consider the available evidence, and discuss the potential benefits and risks of each treatment option.

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Scope of the HILT Review

A systematic review published on May 6, 2024, set out to evaluate high-intensity laser therapy (HILT) for pain, disability, and range of movement in patients with neck pain. It searched for randomized controlled trials of HILT for neck pain disorders across databases including PubMed, Web of Science, Scopus, CINAHL, Science Direct, the Cochrane Library, the PEDro database, and Google Scholar. The supplied summary describes the review’s purpose and search approach but does not state its conclusions.

Emerging Technology and Research Priorities

A 2025 market outlook identifies wearable and portable laser therapy devices, artificial intelligence in laser-device diagnosis, customized treatment frameworks, and telemedicine-compatible laser options as forecast-period trends. It also points to increasing research attention on systemic applications, though the supplied summary does not specify what those applications involve. Separately, a neck-pain management review notes that the condition has substantial economic effects through treatment expenses, diminished productivity, and work-related issues.

Musculoskeletal Pain and Photobiomodulation

A systematic review published on March 8, 2026, describes chronic musculoskeletal pain as affecting approximately 20% of adults globally. It evaluated clinical trials of photobiomodulation therapy (PBMT) for musculoskeletal pain, drawing on evidence from PubMed, Embase, and the Cochrane Library from January 2000 through March 2025. The source identifies PBMT as low-level laser therapy, but the supplied summary does not give the review’s findings.

It's also encouraging to know that researchers are constantly working to improve our understanding of these interventions. New, well-designed studies with low risk of bias are essential to provide more clarity on the effectiveness of LLLT and electrotherapy.

Keep an open mind and stay informed as new evidence emerges. Guidelines and recommendations can evolve as our knowledge grows, and future research may strengthen or change the current perspectives on these treatments. By actively participating in your care and staying informed, you can work with your healthcare provider to find the most effective and appropriate strategies for managing your neck pain.

How much evidence sits behind the neck-pain recommendations

  • 2For chronic neck pain, the reported moderate-quality evidence for LLLT came from 2 trials involving 109 participants and compared treatment with placebo.[1]
  • 22A separate review of LLLT reported pain reduction from immediately after treatment in acute neck pain, and up to 22 weeks after treatment ended in chronic neck pain.[1]

What the evidence adds to the guideline decision

The response explains the recommendation as a judgment about whether evidence meeting the guideline’s patient, intervention, control, and outcome criteria supports recommending these treatments at that time. It is not a claim that every study found no benefit.[2]

The reported positive findings in other reviews can coexist with the guideline’s decision: the response says a recommendation requires clear benefit against a comparator and evidence of at least moderate quality, while also warning that the underlying reviews have important limitations.[2]

Where the recommendation's evidence is weakest

  • Some trials did not study the guideline’s intended group: people with nonspecific neck pain.[2]
  • The review authors’ caution about evidence quality and publication bias was not conveyed in the abstract, which could leave readers with an incomplete impression.[2]
  • The response notes that the journal version of the guideline was abbreviated, which may have obscured the reasoning behind its recommendations.[2]

How other reviews frame laser and electrical treatments

The response addresses disagreement about the guideline’s placement of LLLT and electrotherapy, and describes its three recommendation categories as a feature of that guideline.[2]

A review of transcutaneous electrical stimulation describes possible pain and disability benefits when stimulation is combined with another intervention. That finding concerns a combined approach, rather than establishing the effect of electrotherapy alone.[3]

A laser review reports mixed observations about nerve conduction: some reports found changes in conduction velocity, while others did not find a clinically important effect. This does not by itself establish a meaningful neck-pain outcome.[1]

What future evidence would need to clarify

  • Would well-designed trials focused on nonspecific neck pain produce results that meet the guideline’s criteria for a clear benefit?[2]

Terms used in the guideline response

PICO
Patient, intervention, control, outcome[2]
LLLT
Low-level laser therapy[2]

Sources

  1. Low Level Laser Therapy (LLLT) for Neck Pain: A Systematic Review and Meta-Regression (pmc.ncbi.nlm.nih.gov)
  2. Author Response (Oxford University Press (OUP), 2018)
  3. Transcutaneous electrical stimulation in neck pain: A systematic review and meta-analysis. (pubmed.ncbi.nlm.nih.gov)

About this Article -

Written with AI assistance from published research, and reviewed by the Mystum team. See our About page for more information.

This article is based on research published under:

DOI-LINK: 10.1093/ptj/pzy121, Alternate LINK

Title: Author Response

Subject: Physical Therapy, Sports Therapy and Rehabilitation

Journal: Physical Therapy

Publisher: Oxford University Press (OUP)

Authors: Jasper D Bier, Wendy G M Scholten-Peeters, J Bart Staal, Jan Pool, Maurits W Van Tulder, Emmylou Beekman, Jesper Knoop, Guus Meerhoff, Arianne P Verhagen

Published: 2018-11-29

Everything You Need To Know

1

What are low-level laser therapy (LLLT) and electrotherapy?

Low-level laser therapy (LLLT) and electrotherapy are treatments for neck pain. They are often categorized in clinical guidelines. These guidelines help healthcare providers and patients make informed decisions. The classification of treatments as "recommended," "not recommended," or "may be considered" is crucial for guiding treatment choices.

2

Why are low-level laser therapy (LLLT) and electrotherapy sometimes not recommended for neck pain?

The "not recommended" label for low-level laser therapy (LLLT) and electrotherapy often arises from how their effectiveness is evaluated in research. The full studies may emphasize limitations and potential biases not always evident in the abstracts. Guidelines prioritize treatments with clear benefits demonstrated by high-quality evidence, and these treatments might not meet that standard. This label prompts further scrutiny of the evidence.

3

What are some of the key issues with the research on low-level laser therapy (LLLT) and electrotherapy?

Abstracts can sometimes overstate the benefits of a treatment compared to the detailed findings within the full study. Many studies on low-level laser therapy (LLLT) and electrotherapy have limitations, affecting the reliability of the results. Furthermore, some studies may not focus on the specific type of neck pain, making their results less applicable. These issues can contribute to the 'not recommended' status in clinical guidelines.

4

How does overlapping data affect the evaluation of low-level laser therapy (LLLT)?

When evaluating the evidence for low-level laser therapy (LLLT), it's important to consider the potential for overlapping data in reviews. Reviews sometimes summarize evidence already presented in other reviews. This can inflate the perceived evidence base. Knowing this helps in assessing the actual strength of the supporting data for treatment options.

5

How should I decide whether to use low-level laser therapy (LLLT) or electrotherapy for my neck pain?

The decision to use low-level laser therapy (LLLT) or electrotherapy should always be a collaborative one, made with your healthcare provider. They can assess your individual condition, consider the available evidence, and discuss the potential benefits and risks of each treatment option. This ensures that the chosen treatment aligns with your specific needs and circumstances.

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