Golfer’s elbow can make everyday activities surprisingly painful. Gripping a coffee cup, lifting a bag, turning a doorknob, or completing a workout may trigger discomfort along the inner elbow. Known medically as medial epicondylitis, this condition affects the tendons that connect the forearm muscles to the medial epicondyle of the humerus.

Rest, ice, and activity modification can help manage symptoms, but persistent tendon pain may require a more structured approach. Photobiomodulation therapy (PBMT), including low-level laser therapy (LLLT) and certain high-intensity laser protocols, has attracted clinical interest as a non-invasive approach to musculoskeletal pain management.

How does laser therapy work, what does clinical research reveal, and how can it fit into a comprehensive golfer’s elbow treatment plan? Understanding these questions helps explain why therapeutic laser technology is increasingly discussed in rehabilitation settings.

1. Golfer’s Elbow Symptoms and Causes: Why Medial Epicondylitis Needs Targeted Treatment

1.1 Understanding Inner Elbow Pain and Tendon Damage

Golfer’s elbow develops when the tendons responsible for wrist flexion and forearm rotation become overloaded. Although repetitive golf swings can contribute to the condition, it also affects people who frequently lift weights, use hand tools, perform repetitive manual work, or spend long periods gripping objects.

Common golfer’s elbow symptoms include tenderness on the inner elbow, pain when bending the wrist, discomfort while gripping, and reduced tolerance for lifting or repetitive activity.

Despite its traditional name, medial epicondylitis is often better understood as a form of tendinopathy. Persistent tendon overload can produce structural changes that differ from a simple acute inflammatory response. Treatment therefore needs to address pain while helping patients gradually restore their ability to tolerate physical demands.

1.2 Why Rest and Ice May Not Be Enough

Reducing aggravating activities is an important first step in golfer’s elbow treatment. Ice may temporarily ease discomfort, while appropriate activity modification can prevent repeated overload. However, prolonged rest alone does not necessarily restore tendon capacity.

A structured rehabilitation plan may include progressive strengthening, adjustments to work or exercise technique, and other interventions selected according to the patient's symptoms and clinical assessment.

Laser therapy for tendon pain is one potential adjunct. By delivering specific wavelengths of light to targeted tissues, photobiomodulation aims to influence biological processes associated with pain modulation and tissue response without requiring surgery or injections.

1.3 Golfer’s Elbow vs. Tennis Elbow

Golfer’s elbow and tennis elbow share similarities, but they affect different tendon structures. Medial epicondylitis involves the flexor-pronator tendon group on the inner elbow, whereas lateral epicondylitis affects the extensor tendon structures on the outer elbow.

This distinction matters when interpreting clinical evidence. Research involving tennis elbow can help inform the broader understanding of laser therapy for elbow tendinopathy, but its findings should not automatically be treated as direct proof for golfer’s elbow.

A 1998 clinical study that included both conditions provides particularly relevant evidence because it specifically enrolled patients with medial as well as lateral epicondylitis.

2. What Is Photobiomodulation Therapy (PBMT)? From Low-Level to High-Intensity Laser Therapy

2.1 How Photobiomodulation Therapy Targets Tendon Pain

Photobiomodulation therapy uses selected wavelengths and doses of light to influence biological activity. Depending on the device, light may be delivered by lasers, light-emitting diodes (LEDs), or a combination of light sources.

Research has investigated how photobiomodulation may affect cellular signaling, mitochondrial activity, inflammatory mediators, and pain-related processes. These mechanisms provide a scientific rationale for studying PBMT in musculoskeletal rehabilitation.

Importantly, PBMT is an overarching therapeutic concept rather than a single device or power category. Low-level laser therapy is a well-established form of laser-based photobiomodulation. Certain high-intensity laser protocols may also produce photobiomodulatory effects, although their thermal contribution depends on the treatment parameters used.

2.2 Low-Level Laser Therapy (LLLT) for Golfer’s Elbow

Low-level laser therapy, also known as cold laser therapy in some clinical and consumer contexts, uses relatively low-output laser irradiation intended to produce photobiomodulatory effects without relying on significant tissue heating.

LLLT has been investigated for elbow tendinopathy, including pain during gripping, tenderness, and reduced hand function. Its therapeutic response depends on factors such as wavelength, energy dose, application site, treatment schedule, and the condition being treated.

In a randomized controlled trial published in 2007, Lam and Cheing studied 39 patients with lateral epicondylitis. Participants received either active 904-nm low-level laser treatment or sham irradiation over nine sessions. The laser group showed significantly greater improvements in mechanical pain threshold, maximum grip strength, pain during gripping, and most assessed functional outcomes than the placebo group (p less than 0.0125 for the reported significant outcomes).

These findings support the potential value of appropriately dosed LLLT for elbow tendon pain, particularly when integrated with exercise. Because the study investigated lateral epicondylitis, its findings are relevant supporting evidence rather than a direct estimate of outcomes in golfer’s elbow.

2.3 High-Intensity Laser Therapy (HILT) for Musculoskeletal Pain

High-intensity laser therapy uses higher laser output than conventional low-level laser protocols. Depending on the system, wavelength, power, pulse structure, and application technique, HILT may be used for musculoskeletal pain management and rehabilitation.

Higher output does not automatically mean better clinical results. The delivered energy, treatment area, tissue response, and appropriate clinical parameters all influence how a laser treatment performs.

Some high-intensity protocols are designed to emphasize photobiomodulatory effects, while others may introduce a meaningful thermal component. This distinction is important when explaining the relationship between HILT and PBMT.

For golfer’s elbow, the relevant question is not simply which laser has the highest power. It is whether a specific treatment protocol has appropriate clinical evidence, is suitable for the patient's condition, and can be incorporated into a safe rehabilitation plan.

3. Clinical Evidence: Real Laser Therapy Results for Elbow Tendon Pain

3.1 A Clinical Study of 324 Patients With Golfer’s Elbow and Tennis Elbow

One of the most directly relevant studies was published by Simunovic and colleagues in 1998 in the Journal of Clinical Laser Medicine & Surgery. The multicenter, double-blind, placebo-controlled study enrolled 324 patients, including 50 with medial epicondylitis (golfer’s elbow) and 274 with lateral epicondylitis (tennis elbow).

The researchers investigated low-level laser therapy delivered through trigger-point treatment, scanning techniques, and a combination of both. Among acute and chronic cases treated with the combined technique, complete pain relief accompanied by improved functional ability was reported in 82% of acute cases and 66% of chronic cases.

These results offer direct clinical evidence involving golfer’s elbow patients and illustrate the importance of treatment technique and dosage. However, the reported percentages describe the combined-treatment cases and should not be interpreted as the overall success rate for every participant in the study.

3.2 Low-Level Laser Therapy and Grip Strength: A Randomized Controlled Trial

The 2007 randomized controlled trial by Lam and Cheing provides further evidence for laser therapy in elbow tendinopathy.

Thirty-nine patients with lateral epicondylitis received active 904-nm LLLT or sham treatment over nine sessions. The outcomes included mechanical pain threshold, maximum grip strength, pain during maximum gripping, and self-reported physical function.

The researchers found significantly greater improvements in the active laser group across the reported pain and grip-strength measures, with statistically significant differences for most functional outcomes. The treatment was administered alongside exercise.

For patients with golfer’s elbow, these findings are relevant because gripping and forearm loading are also common sources of pain. Nevertheless, medial and lateral epicondylitis involve different tendon structures, so further condition-specific research is needed to determine how closely the results translate.

3.3 Photobiomodulation Therapy: Findings From a 2025 Clinical Trial

A multicenter, randomized, triple-blind, placebo-controlled trial published in BMJ Open in October 2025 evaluated photobiomodulation combined with a static magnetic field (PBMT-sMF) in 50 adults with lateral epicondylitis.

Participants received six sessions over three weeks. Each session delivered treatment to four sites around the affected epicondyle.

After treatment, 72% of participants receiving PBMT-sMF achieved at least a 30% reduction in pain, compared with 40% in the placebo group. The difference was statistically significant (p = 0.045). Pain outcomes also favored active treatment at the end of the treatment period and at the four-week follow-up.

This study supports the potential of PBMT-based treatment for short-term elbow pain management. Its findings must, however, be attributed to the combined intervention studied, rather than to isolated LLLT or HILT. The trial also did not demonstrate significant between-group improvements in grip strength or the assessed functional disability scores.

Taken together, these studies provide a clinical basis for discussing laser therapy as part of elbow pain management, with the strongest claims tied to the specific treatment protocol and outcomes actually measured.

4. Low-Level vs. High-Intensity Laser Therapy: Choosing an Appropriate Treatment Approach

4.1 Comparing LLLT and HILT for Elbow Tendinopathy

Both low-level laser therapy and selected high-intensity laser protocols may be used in musculoskeletal rehabilitation, but they should not be considered interchangeable.

LLLT generally emphasizes photobiomodulation without significant tissue heating. HILT uses higher laser output and may produce photobiomodulatory effects, thermal effects, or a combination, depending on its parameters.

Clinicians should consider wavelength, energy delivered per treatment area, power density, pulse structure, treatment duration, and the specific diagnosis when selecting a protocol. Simply increasing laser power does not guarantee better pain relief or faster recovery.

For golfer’s elbow, the aim is to select a suitable, evidence-informed protocol that addresses the patient’s symptoms and works alongside appropriate rehabilitation.

4.2 Red Light and Near-Infrared Laser Therapy for Tendon Pain

Red and near-infrared light are commonly used in photobiomodulation applications. Their interaction with tissue varies according to wavelength, optical properties, and delivered energy.

Near-infrared wavelengths are frequently investigated in musculoskeletal applications because they can interact with tissues beneath the skin. However, the therapeutic outcome depends on more than wavelength alone.

A properly designed treatment protocol should account for the target tissue, energy dose, application method, and clinical objective. These considerations apply to both low-level and selected high-intensity laser systems.

4.3 Improving Grip Strength and Daily Function

Pain relief is an important outcome, but patients also want to return to activities that matter to them. For golfer’s elbow, these may include lifting weights, carrying groceries, using tools, playing sports, or completing repetitive work without aggravating the inner elbow.

Clinical assessments can track progress through pain scales, grip dynamometry, and functional questionnaires. These measures help determine whether treatment is translating into practical improvements rather than simply producing a temporary change in symptoms.

Laser therapy may help some patients tolerate rehabilitation more comfortably, while progressive strengthening addresses the tendon’s ability to withstand load.

5. The Best Treatment Approach for Golfer’s Elbow: Photobiomodulation and Rehabilitation

5.1 Laser Therapy for Chronic Golfer’s Elbow

Persistent golfer’s elbow often requires a plan that addresses both pain and the physical demands placed on the affected tendon. Photobiomodulation may be considered as an adjunct when a clinician determines that it is appropriate for the patient.

LLLT has direct published clinical evidence involving medial epicondylitis, while evidence for specific HILT protocols should be evaluated separately. Device selection and treatment parameters should be based on the clinical indication rather than power ratings alone.

5.2 Combining Laser Therapy With Exercise, Rest, and Activity Modification

Effective golfer’s elbow management often combines several complementary strategies:

• Activity modification: Temporarily reduce movements that repeatedly aggravate the tendon.
• Progressive strengthening: Gradually rebuild forearm muscle and tendon load tolerance under appropriate guidance.
• Symptom management: Use suitable measures to help control discomfort during recovery.
• Photobiomodulation: Consider an appropriate laser or light-based protocol as an adjunct to rehabilitation.
• Progress monitoring: Track pain, grip strength, and the ability to perform daily activities.

This integrated approach addresses immediate symptoms while working toward improved function.

5.3 How Long Does Laser Therapy Take to Work?

There is no single treatment schedule that applies to every golfer’s elbow case. Published protocols vary according to wavelength, energy dose, device, treatment frequency, and study population.

For example, the 2007 LLLT trial used nine sessions, while the 2025 PBMT-sMF trial used six sessions over three weeks. These schedules describe the respective research protocols; they are not universal prescriptions for every patient.

Patients and clinicians should evaluate progress over time and adjust the rehabilitation plan according to the clinical response. Persistent or worsening pain warrants professional assessment to confirm the diagnosis and rule out other causes of inner elbow pain.

6. Beyond Rest and Ice for Golfer’s Elbow

Golfer’s elbow can interfere with work, exercise, and everyday activities, particularly when gripping or lifting triggers pain. Photobiomodulation therapy offers a scientifically investigated approach to musculoskeletal pain management, encompassing low-level laser therapy and selected high-intensity laser protocols.

Clinical research provides encouraging findings. A study involving both golfer’s elbow and tennis elbow reported substantial pain relief and functional improvement among cases treated with combined LLLT techniques. A randomized trial in tennis elbow also found significant improvements in pain-related outcomes and grip strength, while a 2025 trial demonstrated improved short-term pain outcomes with PBMT combined with a static magnetic field.

The key is to distinguish the treatment modalities and interpret each study according to its actual population, protocol, and results. When appropriately selected and integrated with progressive rehabilitation, laser therapy may be a valuable component of a comprehensive approach to elbow tendon pain.