Signs You Have Thoracic Outlet Syndrome

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Thoracic outlet syndrome refers to a group of conditions that develop when the blood vessels or nerves in the thoracic outlet become compressed. The thoracic outlet is the narrow space between your collarbone and first rib. Blood vessels, nerves, and muscles that extend from the back to the arms pass through this area. If the space in the thoracic outlet is too narrow, these structures can become compressed. The increased pressure on the blood vessels and nerves may cause pain in your shoulders, neck, and arms. It can also cause numbness or tingling in your hands.

pain in parts of the neck, shoulder, arm, or hand

numbness in the forearm and fingers

weakness of the hand

Compressed blood vessels can cause:

swelling of the arm

redness of the arm

hands or arms that feel cold to the touch

hands or arms that become easily fatigued

You may also find it difficult to lift objects above your head. You might also have a limited range of motion in your shoulders and arms.

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