Laser Therapy in Horses: Does It Work and When Should You Use It?

By Dr Duncan Houston

Laser therapy is becoming increasingly common in equine practice, especially for injury recovery, pain management, and rehabilitation. Many horse owners are offered it as part of a treatment plan, but there is often uncertainty around one key question:

Does it actually make a meaningful difference, or is it just an add-on?

Laser therapy can be useful in the right situations, but it is often misunderstood. It is not a cure, and results depend heavily on how and when it is used.

This article breaks down how laser therapy works, what it is most useful for, where expectations need to be realistic, and how to decide if it is worth including in your horse’s recovery plan.

Quick Answer

Laser therapy in horses uses specific light wavelengths to stimulate cellular activity, reduce inflammation, and support healing. It can improve recovery and comfort in some conditions, particularly soft tissue injuries and post-surgical healing, but it is not a standalone treatment and results vary depending on the condition, application, and overall treatment plan.

Quick Decision Guide

• Mild soft tissue injury or post-exercise soreness → may be helpful as part of recovery

• Post-surgical healing or wound management → often useful adjunct therapy

• Chronic pain or stiffness → may provide supportive relief but not a cure

• Severe lameness or structural injury → not sufficient on its own

• Unclear diagnosis → do not rely on laser therapy without proper assessment

What This Usually Turns Out To Be

In practice, laser therapy is rarely the main reason a horse improves.

Most successful cases involve:

• correct diagnosis

• appropriate rest or rehabilitation

• structured exercise progression

• additional treatments where needed

Laser therapy is usually a supportive tool, not the primary solution.

The mistake owners make most often is expecting it to fix the problem on its own, rather than seeing it as one part of a broader plan.

What Is Laser Therapy?

Laser therapy, often called low-level laser therapy, uses controlled light energy applied to tissue.

These therapeutic lasers:

• do not cut or burn tissue

• are designed to penetrate skin and underlying structures

• aim to stimulate cellular processes

Common effects include:

• increased cellular energy production

• modulation of inflammation

• improved circulation

• support of tissue repair

It is sometimes referred to as photobiomodulation, but the key idea is simple: using light to influence healing at a cellular level.

How Laser Therapy Works

Laser therapy interacts with cells to:

• increase ATP production, which supports cellular activity

• influence inflammatory pathways

• improve local blood flow

• assist lymphatic drainage

These effects can help:

• reduce inflammation

• support tissue repair

• improve comfort in some cases

However, the degree of benefit varies significantly depending on the situation.

What Conditions Is It Used For?

Laser therapy is commonly used in:

• soft tissue injuries such as muscle or tendon strain

• post-surgical wounds

• back and neck soreness

• joint inflammation

• recovery after intense exercise

• chronic pain conditions

It is often combined with:

• rest and controlled exercise

• physiotherapy

• medical treatment where needed

Severity Framework

What Vets Care About Most

The key question is not “should we use laser therapy?”

It is:

• what is the actual diagnosis

• what tissue is involved

• what stage of healing the horse is in

• what the overall treatment plan looks like

Laser therapy is only as useful as the plan it sits within.

In practice, good outcomes come from:

• correct diagnosis first

• appropriate workload management

• structured rehabilitation

• then adding therapies like laser where appropriate

What the Research Says

There is growing interest in laser therapy, but evidence in horses is still developing.

Challenges include:

• small study sizes

• multiple treatments used at once

• inconsistent protocols

• variation in equipment and settings

Some studies and clinical experience suggest:

• improved healing in certain soft tissue conditions

• reduced inflammation

• better comfort in some cases

But results are not consistent across all conditions.

Why Results Vary

Laser therapy does not work the same in every horse.

Effectiveness depends on:

• type and severity of injury

• depth of tissue involved

• timing of treatment

• frequency of application

• accuracy of targeting

• individual healing response

For example:

• superficial injuries may respond better

• deeper structures are harder to reach effectively

• early-stage treatment often gives better results

Limitations You Need to Understand

Laser therapy has clear limits.

It does not:

• replace proper diagnosis

• fix structural damage

• eliminate the need for rest or rehabilitation

• guarantee improvement

It is not a shortcut.

Used incorrectly, it can delay proper treatment by giving a false sense of progress.

When Is This an Emergency?

Laser therapy is not appropriate as a primary response in emergency situations.

Seek veterinary care immediately if your horse has:

• sudden severe lameness

• swelling, heat, or pain in a limb

• inability to bear weight

• signs of fracture or major injury

• rapidly worsening condition

Do not rely on supportive therapies when urgent diagnostics are needed.

What Should You Do Next?

If you are considering laser therapy:

1. Confirm the diagnosis first

2. Ask what role laser therapy will play in the plan

3. Understand expected outcomes and timeframe

4. Combine it with appropriate rest and rehabilitation

5. Monitor progress objectively

Key checkpoint:

• gradual improvement → continue

• no change after multiple sessions → reassess plan

• worsening signs → stop and investigate

Common Mistakes

• expecting laser therapy to fix the problem alone

• using it without a clear diagnosis

• continuing treatment without improvement

• ignoring rest and rehabilitation

• choosing convenience over proper planning

How To Use Laser Therapy Effectively

Laser therapy works best when:

• used early in soft tissue injury management

• applied consistently as part of a structured plan

• combined with appropriate exercise progression

• guided by someone experienced in its use

• used with realistic expectations

It is a support tool, not the foundation.

Frequently Asked Questions

Does laser therapy actually work in horses?

It can help in some cases, particularly soft tissue injuries and recovery, but results vary.

Is laser therapy a replacement for other treatments?

No. It is typically used alongside other therapies.

How quickly will I see results?

Improvement is usually gradual, not immediate.

Can it treat arthritis?

It may help with comfort, but it does not reverse joint disease.

Is it safe?

Generally yes when used correctly, but effectiveness depends on proper use.

Is it worth the cost?

That depends on the condition and how it fits into the overall treatment plan.

Final Thoughts

Laser therapy can be a useful addition to equine treatment plans, particularly for recovery and soft tissue support. But its value depends entirely on how it is used.

The most important factor is not the tool itself, but the quality of the diagnosis and the structure of the rehabilitation plan around it.

When used appropriately, laser therapy can support healing and improve comfort. When relied on too heavily or used without a clear plan, it adds little.

Understanding that difference is what leads to better outcomes.

If you want help understanding whether laser therapy makes sense for your horse’s condition, or how to structure a recovery plan properly, ASK A VET™ can help you work through the decision with clear veterinary guidance.