Pain from an old injuryIt is not uncommon for an injury to cause chronic pain months or years after the original incident. Or in many cases, several small (or micro) injuries over time in the same area end up having the same effect as one large injury.

Often the body has a difficult time fully healing an injury on it’s own, which can lead to pain and/or mobility limitations that continue over a long period of time or just never resolve.

One of the very common underlying problem for old injuries is internal scar tissue. Internal scar tissue is created post injury and/or builds up over many small or even micro injuries and creates friction with neighboring normal tissue (leading to inflammation) or in the worst case, it can form adhesions to surrounding soft issues which lead to loss of mobility and/or re-injury.

Recent Injury and Sport and Work Injury

If you’re interested in learning how Cold Laser Therapy can help resolve a recent injury (under 3 months old), visit our Recent Injury page.

For more information on specific sport and work related injuries, visit our Sport and Work Injuries page.

If an injury does not heal properly, other areas of the body can begin to become painful because they are compensating for the injured area. For example, hip pain can be caused from previous injury or strain to the back. Cold Laser Therapy can help resolve pain and restore range of motion even years after an injury.

Why Is My Old Injury Still Causing Pain?

Inflammation, internal scar tissue, and re-injury are the most common causes of pain from an old injury.


Inflammation can be an ongoing issue with injuries that happened months or years ago. Sometimes injuries that never fully heal will show signs of inflammation when aggravated; this contributes to the delayed healing process.

Inflammation is typically the main cause of pain immediately after an injury; however, if the body is not able to heal itself, one may experience inflammation that comes and goes indefinitely. Swelling, redness and increased temperature in the area are clear signs of inflammation.

There are various possible underlying reasons for recurring inflammation; for example, a health condition such as diabetes. Or even more commonly: Built-up internal scar tissue irritates surrounding tissues – especially while working or exercising the area of injury. This is because scar tissue is less flexible and also more abrasive than normal tissue. And when it rubs against healthy tissues, painful inflammation is a rather common occurrence.

Internal Scar Tissue

As the body works to heal the tissues affected by injury, it leaves not only external scars, but also creates internal scar tissue which is helpful at first, but can cause pain and/or mobility limitations down the road. Internal scar tissue is very effective in quickly re-connecting tissues after they have been injured or altered through surgery, however, it remains a very thick inflexible substance that is difficult to break up even after healing is complete. And sometimes internal scar tissue even creates adhesions connecting organs or tissues that should not be connected. Such scar tissue adhesions or the general stiffness of scar tissue often compromise the full regular range of motion of a joint or muscle. And that often forces movements to become not entirely natural. These improper movements frequently cause neighboring muscles and/or joints to get overstressed, then leading to pain, micro-injuries or worse.

Cold Laser Therapy can help to break up internal scar tissue even after an injury is years old. Internal scar tissue is one of the most common causes of chronic pain after injury. Internal scar tissue that has been untreated for years typically takes longer to break up, which means more Cold Laser Therapy treatments compared to a recent injury. However, Cold Laser Therapy is a very effective way to reduce scar tissue and it is completely safe and painless.

To find out more, visit our Internal Scar Tissue page.


An area or joint that has previously been injured can become more susceptible to injury. As time goes on, internal scar tissue build up can contribute to the area being more vulnerable to injury. This is because internal scar tissue limits range of motion. It is never too late to treat lingering pain with Cold Laser Therapy as it can break up internal scar tissue tissue that has been untreated for years and resolve pain being caused by it.

Cold Laser Therapy for an Old Injury
Cold Laser Therapy Old Injury Treatment: Step 1

Cold Laser Therapy Old Injury Treatment: Step 1

Cold Laser Therapy Old Injury Treatment: Step 2

Cold Laser Therapy Old Injury Treatment: Step 2

Cold Laser Therapy Old Injury Treatment: Step 3

Cold Laser Therapy Old Injury Treatment: Step 3

Decreases Inflammation: Speeds up the body's natural inflammation phase and induces the repair phase of healing.

Removes Internal Scar Tissue: Inhibits and removes Internal Scar Tissue that naturally forms from injury or repetitive strain, causing discomfort and a delay in healing.

Regenerates Muscle Tissue: Transfers light energy to the affected cells of muscle, regenerating and strengthening damaged muscle tissue to prevent future injury.

Activates Cartilage Production: Promotes the natural cartilage growth process by increasing the production of cellular energy (ATP).

Accelerates Bone Repair: Simulates the bone cells to replicate and produce new healthy bone tissue.

Nerve Regeneration: Helps damaged nerves to recover by growing the neural network and repairing vital insulation around the nerve.

Stimulates Blood Flow: Increases the delivery of oxygen and nutrients required for healing of the affected cells.

Visit our Cold Laser Therapy page to learn more about how the treatment works.