What Causes Frozen Shoulder
Frozen shoulder, also called adhesive capsulitis, is a condition that limits movement in the shoulder joint, causing stiffness and pain. This condition can disrupt daily activities, leaving individuals frustrated. In this article, we’ll explain what causes frozen shoulder and how certain therapies, like medical-grade red light therapy devices, can help alleviate the symptoms.
What Is Frozen Shoulder
Frozen shoulder is characterized by restricted movement and persistent pain in the shoulder joint. It typically develops gradually and affects both the outer capsule and the ligaments that surround the shoulder. This restriction in movement is due to inflammation, leading to the formation of scar tissue within the joint.

Definition of Frozen Shoulder
Frozen shoulder refers to the thickening and tightening of the joint capsule surrounding the shoulder. Over time, this leads to painful stiffness and a loss of flexibility. Most people experience difficulty lifting their arm above shoulder height, making even simple tasks, like reaching or lifting, challenging.
Common Symptoms of Frozen Shoulder
The primary symptoms of frozen shoulder are pain and stiffness. Initially, the pain is sharp or aching, and it gradually turns into more of a dull ache as the condition progresses. In the later stages, the shoulder becomes so stiff that you may struggle to move it at all.
Stages of Frozen Shoulder
Frozen shoulder typically develops in three stages: the freezing stage (pain and gradual loss of mobility), the frozen stage (pain subsides, but stiffness persists), and the thawing stage (mobility gradually returns). Each stage may last for several months, depending on the severity of the condition.
What Causes Frozen Shoulder
Frozen shoulder can be triggered by several factors, many of which involve inflammation and restricted movement. While the exact cause isn't always clear, several key factors are known to increase the likelihood of developing this condition.
Inflammation and Scar Tissue Formation
The primary cause of frozen shoulder is inflammation within the joint capsule. As the body responds to inflammation, the tissue in the shoulder begins to thicken, forming scar tissue. This thickening restricts the shoulder's ability to move, leading to pain and stiffness.
Limited Shoulder Movement and Joint Stiffness
A lack of movement in the shoulder joint can contribute to frozen shoulder. When the shoulder isn't used or moved for an extended period—due to injury, surgery, or immobilization—it can start to stiffen, which eventually leads to the development of frozen shoulder.
Autoimmune Conditions and Inflammatory Diseases
Certain autoimmune conditions, like rheumatoid arthritis or diabetes, are known to increase the risk of frozen shoulder. These conditions can cause the body to attack its own tissues, including those in the shoulder, leading to inflammation and stiffness.
Post-Surgical or Post-Injury Factors
Frozen shoulder often develops after surgery or injury to the shoulder. When the shoulder is immobilized after surgery or trauma, the tissues can begin to stiffen, increasing the likelihood of developing this painful condition. Physical therapy is usually recommended to prevent this complication.

Risk Factors for Developing Frozen Shoulder
Several risk factors increase the chances of developing frozen shoulder. Understanding these factors can help you take preventative measures or seek treatment early on if necessary.
Age and Gender
Frozen shoulder most commonly affects people between the ages of 40 and 60, with women being more likely to develop it than men. Age-related changes in the shoulder joint, combined with hormonal factors, contribute to this higher risk among middle-aged individuals.
Diabetes and Other Medical Conditions
People with diabetes are at a higher risk of developing frozen shoulder. The exact reason isn't fully understood, but it’s believed that high blood sugar levels may contribute to changes in the shoulder’s connective tissues. Other conditions, like thyroid disorders, also increase the risk.
Previous Shoulder Injuries
If you’ve had a previous shoulder injury, such as a rotator cuff tear or dislocation, you’re at a higher risk of developing frozen shoulder. The injury and subsequent immobilization of the joint can lead to the thickening and stiffness that define frozen shoulder.
Sedentary Lifestyle
A lack of regular physical activity can lead to weakened muscles and stiff joints. Those who have sedentary jobs or lifestyles are more likely to develop frozen shoulder because of decreased range of motion in the shoulder over time.
How Medical-Grade Red Light Therapy Devices Can Help
fda approved red light therapy devices for pain offer a non-invasive and effective treatment option for frozen shoulder. Red light therapy works by penetrating the skin and stimulating the body's natural healing processes, helping to reduce pain and improve mobility in the shoulder joint.
How Red Light Therapy Works
FDA approved red light therapy uses specific wavelengths of light to penetrate the skin and reach the tissues beneath. The therapy stimulates the mitochondria in cells, enhancing the production of energy for healing. This process promotes cell regeneration and can accelerate the recovery of damaged tissues in the shoulder.
Red Light Therapy for Pain Relief
One of the key benefits of red light therapy machines is their ability to reduce pain associated with frozen shoulder. By targeting the inflamed tissues, red light therapy helps to reduce inflammation, offering pain relief without the need for medications or invasive procedures.
Enhancing Range of Motion with Red Light Therapy
In addition to reducing pain, FDA approved red light therapy helps to restore mobility in the shoulder. The therapy works by increasing blood circulation and promoting tissue flexibility, allowing for a greater range of motion in the joint. Consistent use can help you regain the ability to move your shoulder freely.

Other Treatment Options for Frozen Shoulder
Aside from red light therapy devices - PRUNGO FluxGo, there are other treatments available to help manage frozen shoulder. A combination of methods may be necessary for optimal results.
Physical Therapy and Exercises
Physical therapy is a cornerstone of frozen shoulder treatment. Specialized exercises can help increase range of motion and flexibility in the shoulder. A therapist can guide you through stretching and strengthening exercises that will assist in recovering movement.
Medications and Steroid Injections
For pain management, over-the-counter medications like ibuprofen or prescription medications may be used. In more severe cases, steroid injections into the shoulder joint can provide relief from inflammation and pain, helping to improve mobility.
Surgical Interventions
In cases where other treatments don't work, surgery may be necessary. This could involve manipulating the shoulder under anesthesia to break up the scar tissue or, in extreme cases, removing the scar tissue surgically.
Prevention of Frozen Shoulder
While not all cases of frozen shoulder can be prevented, there are steps you can take to reduce your risk and avoid the condition altogether.
Maintaining Shoulder Mobility
Regular exercises and stretches can help maintain shoulder flexibility and prevent stiffness. Activities like yoga or swimming can be especially helpful in keeping the shoulder joint mobile and reducing the risk of developing frozen shoulder.
Monitoring Risk Factors
If you have diabetes or another condition that increases your risk of frozen shoulder, it’s important to monitor and manage those conditions. Keeping your blood sugar levels under control and staying active can help reduce the likelihood of developing this painful condition.
Early Intervention and Treatment
If you notice signs of shoulder pain or stiffness, seek early treatment. Addressing shoulder issues early on can prevent them from worsening and potentially leading to frozen shoulder. Physical therapy and other treatments can help avoid long-term complications.

Conclusion
Frozen shoulder may seem daunting, but it can be effectively managed with proper understanding of its causes and appropriate treatment. Medical-grade red light therapy devices are ideal for relieving pain and improving mobility. Combined with physical therapy and other treatments, these devices can help you regain your desired range of motion, allowing you to lead a more active life. Early intervention is crucial for frozen shoulder sufferers. For larger areas of treatment or facial therapy, consider using a red light therapy panel or red light therapy masks to experience the relief felt by many patients.


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