What Is Frozen Shoulder and What Causes It?

Frozen shoulder, medically known as adhesive capsulitis, is a condition that causes progressive shoulder pain and stiffness when the capsule surrounding the shoulder joint becomes inflamed and thickened. This thickening restricts movement and can significantly limit daily activities.

Patients often notice gradual shoulder pain, increasing stiffness, and difficulty performing simple activities such as reaching overhead, fastening a seatbelt, or getting dressed. In some cases, symptoms can persist for months or even years if not properly addressed.

If you are searching for a shoulder pain doctor in North Carolina, understanding frozen shoulder symptoms and treatment options is the first step toward relief. Because frozen shoulder can mimic other causes of shoulder pain, evaluation by an experienced doctor is essential to confirm an accurate diagnosis and recommend the most effective shoulder pain treatment. 

At Champion Health System,  our interventional specialists including Dr. Ramaraj provide comprehensive diagnosis and advanced frozen shoulder treatment options designed to reduce inflammation, relieve pain, and restore mobility.

What Is a Frozen Shoulder?

Frozen shoulder is a condition in which the connective tissue surrounding the shoulder joint (the capsule) becomes inflamed, thickened, and tight.

As inflammation progresses:

• The capsule stiffens
• Scar tissue forms
• Joint fluid decreases
• Movement becomes severely restricted

Unlike general shoulder soreness, frozen shoulder limits both active and passive range of motion, meaning even when someone else tries to move your arm, it remains stiff.

It most commonly affects adults between the ages of 40 and 70 and is more common in women.

What Are the Symptoms of a Frozen Shoulder?

Frozen shoulder symptoms typically develop gradually and worsen over time. The condition progresses through three stages:

1. Freezing Stage (Painful Stage)

• Gradual onset of shoulder pain
• Increasing stiffness
• Pain is worse at night
• Reduced range of motion

2. Frozen Stage (Stiff Stage)

• Severe restriction in movement
• Difficulty lifting the arm
• Trouble with daily activities
• Pain may decrease slightly, but stiffness remains

3. Thawing Stage (Recovery Stage)

• Gradual return of motion
• Decreasing stiffness
• Slow improvement over months

Without appropriate frozen shoulder treatment, the full cycle may last 1–3 years.

What Causes Frozen Shoulder?

In many patients, frozen shoulder develop without a clear injury. However, several risk factors increase the likelihood of developing the condition.

Inflammation of the Shoulder Capsule

The primary driver of frozen shoulder is inflammation within the shoulder joint capsule — the strong connective tissue that surrounds and stabilizes the joint.

When this capsule becomes inflamed, it begins to thicken and tighten. Over time, scar tissue (adhesions) can form, and the normal production of lubricating joint fluid decreases. As a result, the joint loses flexibility, and movement becomes painful and restricted.

This inflammatory process is what separates frozen shoulder (adhesive capsulitis) from other causes of shoulder pain. Rather than a torn tendon or cartilage damage, the problem lies in the tightening and stiffening of the capsule itself.

Shoulder Injury or Surgery

Frozen shoulder often develops after a shoulder injury or surgical procedure that limits normal movement. Conditions such as rotator cuff tears, shoulder fractures, or post-surgical recovery can require temporary immobilization with a sling or restricted activity.

When the shoulder is not moved regularly during recovery, inflammation can increase, and the joint capsule may begin to tighten. Over time, this reduced mobility can trigger the stiffness and pain characteristic of a frozen shoulder.

Underlying Medical Conditions

Certain systemic health conditions significantly increase the risk of developing a frozen shoulder. Research shows that adhesive capsulitis is more common in patients with:

• Diabetes
• Thyroid disorders
• Cardiovascular disease
• Autoimmune conditions

In patients with diabetes, especially, frozen shoulder symptoms may be more severe and last longer. Because of these associations, a shoulder pain doctor will often review your full medical history when evaluating persistent shoulder stiffness or pain.

Abnormal Blood Vessel Growth

Emerging research suggests that chronic inflammation in a frozen shoulder may stimulate the growth of small, abnormal blood vessels within the joint lining. These vessels can be accompanied by nerve fibers that contribute to persistent pain and ongoing inflammation.

This evolving understanding of the condition has helped shape newer, minimally invasive frozen shoulder treatment approaches that specifically target inflammation at its source rather than only managing symptoms.

How Is Frozen Shoulder Diagnosed?

A shoulder pain doctor diagnoses frozen shoulder through:

• A detailed medical history review
• A comprehensive physical examination
• Range of motion testing
• Imaging (X-ray or MRI) to rule out other conditions

One key diagnostic sign: global restriction of both active and passive motion.

This distinction helps differentiate frozen shoulder from conditions such as rotator cuff tears or shoulder arthritis.

What Is the Best Shoulder Pain Treatment for Frozen Shoulder?

The best treatment depends on the stage and severity of the condition.

Conservative Frozen Shoulder Treatment Options

Most patients begin with:

• Anti-inflammatory medications
• Physical therapy
• Corticosteroid injections
• Gentle mobility exercises

While these treatments can help reduce symptoms, they do not always resolve the underlying inflammation.

Advanced Frozen Shoulder Treatment: Shoulder Embolization

For patients with persistent pain, minimally invasive treatment options are now available.

At Champion Health System, we offer shoulder embolization, an outpatient procedure designed to target chronic inflammation in the joint.

This treatment works by:

• Targeting abnormal inflammatory blood vessels
• Reducing inflammation
• Decreasing pain
• Improving mobility

The procedure is performed in an outpatient setting without major surgery. 

Patients who may benefit include those who:

• Have not improved with physical therapy
• Want to avoid surgery
• Are not candidates for joint replacement
• Have chronic frozen shoulder symptoms

When Should You See a Shoulder Pain Doctor?

You should schedule an evaluation if:

• Shoulder stiffness lasts more than 2 weeks
• Pain interferes with sleep
• You cannot lift your arm normally
• Symptoms are worsening
• Conservative treatments haven’t helped

Early diagnosis can shorten recovery time and prevent long-term stiffness.

Can Frozen Shoulder Go Away on Its Own?

Frozen shoulder may eventually improve without intervention, but recovery can take years. Many patients experience prolonged discomfort and reduced function.

Advanced shoulder pain treatment options can help reduce inflammation, restore motion, and potentially shorten recovery time.

How Long Does the Frozen Shoulder Last?

Mild cases:  Several months

Moderate to severe cases: 1–3 years

With advanced treatment, many patients experience faster pain relief and improved mobility compared to waiting for the condition to resolve on its own.

Because frozen shoulder progresses differently in every patient, recovery timelines can vary significantly. An evaluation with Dr. Ramaraj and the interventional specialist at Champion Health System in North Carolina can determine the most appropriate treatment plan for your specific condition.

Take the First Step Toward Shoulder Pain Relief

Living with frozen shoulder can make even simple movements painful and exhausting. The stiffness, limited range of motion, and ongoing discomfort can interfere with work, sleep, and daily life. The good news is that you do not have to wait years for relief anymore.

Champion Health System offers advanced, minimally invasive shoulder pain treatment options designed to reduce inflammation, restore mobility, and help you return to normal activity sooner.
Schedule a consultation today to receive a personalized evaluation and determine whether advanced frozen shoulder treatment is right for you.