Shoulder Nerve Compression – Symptoms, Causes & Treatment

Author: Erik Versluis, Physiotherapist
Published: 29-07-2025
⏱ Estimated reading time: 5 minutes

Nerve compression in the shoulder is less common than other shoulder conditions, yet it can significantly affect shoulder and arm function. With accurate diagnosis and proper treatment, recovery is often very possible.

What Is Nerve Compression?

Shoulder nerve compression occurs when a nerve is under prolonged pressure or stretch. This can result from muscle tears, swelling due to a cyst, calcification, or localized tissue thickening—often due to repetitive overhead movements such as volleyball or tennis.

When a nerve remains compressed, blood flow decreases and signal transmission is impaired, causing weakness and sensory loss.

Types of Shoulder Nerve Compression

• Suprascapular nerve: Runs along the top and underside of the scapula; often compressed by overuse or trauma.
• Axillary nerve: Passes through the armpit; may be injured after shoulder dislocation or fracture.
• Radial nerve: Located on the back of the arm; can be compressed by prolonged external pressure, such as lying on the arm for extended periods.

Common Causes

• Repetitive movements: Cause inflammation and swelling, increasing nerve pressure.
• Injury or trauma: Fractures and dislocations can compress or damage nerves.
• Poor posture: May place sustained pressure on nerves, leading to numbness and tingling.
• Arthritis: Joint inflammation can create swelling that compresses nerves.
• Tumors or cysts: Rare, but they may press on nearby nerves.

Stretched nerve (yellow) during shoulder dislocation

Symptoms of Shoulder Nerve Compression

🔴 Shoulder and arm pain
🔴 Muscle weakness
🔴 Restricted movement
🔴 Tingling or numbness in the shoulder, arm, or hand

Since these symptoms also occur in other shoulder disorders, it is essential to seek professional evaluation for accurate diagnosis.

Treatment Options

👉 Physiotherapy: Strengthens the shoulder muscles, improves posture, and reduces pain.
👉 Medication: Anti-inflammatory drugs can relieve temporary pain and swelling.
👉 Injections: Corticosteroids may be used to reduce local inflammation.
👉 Surgery: In severe cases, surgery may be needed to relieve the pressure on the nerve.

The right treatment depends on the patient’s condition and should be determined by a medical professional or physiotherapist.

Prognosis

Recovery depends on the severity and duration of the compression. With early diagnosis and proper care, most people experience significant improvement and return to normal activity. Prompt treatment helps prevent long-term damage.

Conclusion

Shoulder nerve compression can cause considerable discomfort, but most patients recover well with proper diagnosis and treatment. If you’re experiencing signs of nerve compression, consult a physiotherapist or physician for a full evaluation and tailored care plan.

• Shoulder nerve compression is rare but can significantly impact arm and shoulder function.

• Causes include overuse, trauma, poor posture, or local swelling.

• Commonly affected nerves: suprascapular, axillary, and radial.

• Symptoms include pain, weakness, restricted movement, and numbness.

• Diagnosis is essential, as symptoms can resemble other conditions.

• Treatment may involve physiotherapy, medication, injections, or surgery.

• Early intervention improves prognosis and reduces risk of long-term damage.