Thoracic Outlet Syndrome

What Is Thoracic Outlet Syndrome?

Thoracic Outlet Syndrome (TOS) is a group of conditions caused by compression of nerves, blood vessels, or both as they pass through the space between the neck and shoulder, known as the thoracic outlet. This can lead to pain, numbness, tingling, weakness, or circulation-related symptoms in the neck, shoulder, arm, or hand. The symptoms and treatment approach can vary depending on whether nerves or blood vessels are affected.


Causes and Risk Factors of Thoracic Outlet Syndrome

Common Causes

  1. Muscle tightness or abnormal anatomy
  2. Neck or shoulder injuries
  3. Repetitive arm movements
  4. Poor posture affecting the shoulder region
  5. Extra rib or other anatomical variations
  6. Trauma involving the neck or chest
  7. Pressure on nerves or blood vessels
Risk Factors

  1. Repetitive overhead activities
  2. Heavy lifting or strenuous exercise
  3. Sports involving frequent arm movement
  4. Prolonged poor posture
  5. Previous neck or shoulder injury
  6. Muscle imbalance around the shoulder
  7. Certain anatomical abnormalities

Symptoms of Thoracic Outlet Syndrome

Symptoms depend on which structures are compressed. Nerve-related TOS is more common and can cause discomfort or abnormal sensations in the arm and hand. Vascular compression may cause changes in circulation.

  • Pain in the neck, shoulder, arm, or hand
  • Numbness or tingling in the arm or fingers
  • Weakness or heaviness in the affected arm
  • Symptoms that worsen with overhead activity
  • Swelling or unusual sensations in the arm
  • Coldness or changes in hand or arm colour in vascular cases

Diagnosis and Treatment of Thoracic Outlet Syndrome

Diagnosis involves a detailed assessment of symptoms, posture, movement, strength, sensation, and circulation. Depending on the suspected type of TOS, imaging or nerve and vascular tests may be recommended. Treatment is usually based on the underlying cause and severity of symptoms.

  • Posture correction and activity modification
  • Physical therapy to improve shoulder and neck mechanics
  • Stretching and strengthening exercises
  • Appropriate medicines for pain and inflammation
  • Targeted pain management procedures in selected cases
  • Specialist treatment for significant vascular compression

How Vedant Pain Management Clinic Can Help

At Vedant Pain Management Clinic, we assess the pattern and possible source of your neck, shoulder, arm, or hand symptoms to develop an individualized treatment plan. Depending on the cause and severity, management may include conservative care, physical therapy guidance, medication, and minimally invasive pain procedures when appropriate. Our goal is to reduce pain, improve function, and help you return to your daily activities comfortably.

Frequently Asked Questions

Thoracic Outlet Syndrome is a condition in which nerves, blood vessels, or both are compressed in the space between the neck and shoulder. It can cause pain, numbness, tingling, weakness, or circulation changes in the arm and hand.

It can be caused by anatomical abnormalities, an extra rib, muscle tightness, poor posture, repetitive arm movements, or previous injuries involving the neck, shoulder, or chest.

Common symptoms include neck and shoulder pain, arm or hand pain, numbness, tingling, weakness, heaviness, and symptoms that worsen when the arms are raised. Vascular forms may also cause swelling, coldness, or colour changes.

Yes. When nerves passing through the thoracic outlet become compressed, they can cause numbness, tingling, burning sensations, or weakness in the arm, hand, or fingers.

Diagnosis involves reviewing your symptoms and medical history along with a physical examination. Depending on the suspected type, your doctor may recommend imaging, nerve studies, or tests that assess blood flow.

Yes. Many patients are initially managed with non-surgical treatment such as posture correction, activity modification, physical therapy, stretching, strengthening exercises, and appropriate pain management.

Physical therapy may help improve posture, shoulder movement, flexibility, and muscle balance. A tailored exercise program can help reduce pressure around the thoracic outlet in suitable patients.

Yes. Compression in the thoracic outlet can cause pain around the neck, shoulder, upper chest, arm, or hand. Symptoms may become more noticeable during repetitive or overhead activities.

You should seek medical evaluation if you have persistent arm or shoulder pain, numbness, weakness, swelling, or circulation changes. Sudden significant swelling, severe pain, or marked colour or temperature changes in an arm require prompt medical attention.

Vedant Pain Management Clinic can evaluate persistent pain and nerve-related symptoms associated with Thoracic Outlet Syndrome and develop an individualized treatment plan. Depending on the cause and severity, treatment may include conservative care, physical therapy guidance, medication, or minimally invasive pain management procedures when appropriate.
Meet Our Specialist

Dr. Mohit Gupta

Interventional Pain Physician & Pain Specialist

Dr. Mohit Gupta is a highly experienced Interventional Pain Physician dedicated to helping patients overcome chronic pain and regain a better quality of life. He combines advanced, minimally invasive pain management techniques with compassionate, personalized care.

10+ Years Experience
Advanced Pain Therapies
Patient-First Care
Dr Mohit Gupta