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How Does Cold Laser Therapy Work?


Cold Laser therapy also known as Low Level Laser Therapy or Photon modulation is a form of phototherapy or light therapy. Dr Hagmeyer uses cold laser light therapy to help a number of chronic pain conditions.  The cold laser is also know as a Low Level Laser device produces a beam of light, which is applied over the injured area to stimulate healing. There is no pain with the treatment.

When laser light is absorbed by a living tissue, it triggers biological reactions in the cells. Chemical substances are produced, released and carried by blood and lymphatic flow to other parts of the system. In this way, the effects of cold laser light may not be only local, but can also achieve wide systemic effects.

Here are some of the Benefits and physiological responses of Low Level Laser Therapy (LLLT):

• Reduction in pain by causing production of natural pain killer endorphins.
• Reduction in inflammation by suppressing inflammatory enzymes that create swelling, redness, pain, and heat.
• Enhanced lymphatic drainage, which increases circulation and speeds healing.
• Release of tight muscles that create chronic pain, joint problems, and decreased mobility.
• Faster bone repair by stimulating fibroblastic and osteoblastic proliferation.

What conditions does Cold Laser therapy treat?

Dr. Hagmeyer uses Low Level Cold Laser Therapy for osteoarthritis, TMJ, Knee problems, Fibromyalgia, Peripheral Neuropathy, Diabetic Neuropathy, Pre and post surgical care. Cold Laser can work for acute or chronic injuries, pain or inflammation. Conditions that have shown successful outcomes include:

  • Soft tissue injuries
  • Tendinitis
  • Sprains & strains
  • Back, neck and shoulder pain
  • Repetitive strain injuries
  • Carpal tunnel syndrome
  • Chondromalacia patellae
  • Muscle pain
  • Peripheral neuropathy
  • RSD (CRPS)
  • Headaches and migraines
  • Herpes (Shingles)
  • Arthritis
  • Plantar fasciitis
  • Tennis Elbow
  • Herniated disc
  • Nerve pain
  • Whiplash
  • Bell’s palsy
  • Fractures
  • Lymphedemea
  • Non-healing wounds
  • Sciatica
  • Skin problems
  • Bursitis
  • Jaw pain/TMJ


Is cold laser and Low Level Laser therapy safe?

Cold lasers are called “cold” because they do not induce any temperature change in the body’s tissues. It is a safe, painless and medication-free treatment with no negative side effects. Cold laser therapy has been used worldwide for over 30 years with no documented adverse side effects. The FDA has cleared laser therapy for the treatment of many pain syndromes and health conditions.

The future holds promise for successful cold laser treatment outcomes for wound healing, drug addiction, weight control, and smoking cessation. The Thor Laser System is the most powerful cold laser in the world. Ask Dr. Hagmeyer about how Low Level Laser Therapy aka cold laser can help you feel good again.

LLLT Treatment photos



Is Cold Laser Therapy painful?

No. Low level lasers do not generate perceivable heat. Therefore, when the laser contacts the skin the patient experiences no warmth or burning as a result of the laser. Most people feel nothing at all while a few may feel a slight tingling during the treatment.

Is this just a temporary fix to my problem?

For most patients, the results from the treatments have been sustainable. While some patients get immediate results, others usually require 6-12 treatments before there is a lasting effect. Since each person’s condition varies in severity, the doctor will determine after reviewing your condition if laser treatments may benefit you.

Has Cold Laser Therapy Been Proven?

There are more than more than 2500 scientific research studies on laser therapy. These reports verify the clinical value of laser therapy.

Can I be treated if I have a pacemaker or joint replacement?
People with a pacemaker or other types of implants or prosthesis can still safely receive cold laser treatments.

How many treatments will I need, and how often will I need them?
A patient usually comes in for a treatment several times a week. If that is not possible, for instance if you work or live far away, then alternate arrangements would be made. The number of treatments can range anywhere from 12-20, depending on the nature and severity of the condition.

How will I know if the laser is working?
Many people will see a reduction in symptoms over after a single treatment, However the majority will experience relief more gradually. An important indicator in planning the treatment regimen will be how soon after laser treatment symptoms improve.

Why Cold Laser Therapy instead of Electrical Stimulation or Ultrasound?
Alternative modalities may relieve pain but do nothing to promote deep healing of damaged tissue. Electrical stimulation is often uncomfortable. It lacks the consistent pain reduction of laser and does not provide the same stimulation of tissue healing. Ultrasound is not as effective at blocking pain as a laser. It can mildly stimulate healing, but studies show that it does this by weakening the tissue, whereas laser actually causes tissue to strengthen.

For more information specifically to how we use Cold laser with patients who suffer with Knee problems visit or our our Peripheral Neuropathy Site-