Neck pain, or discomfort in any part of the neck, can strike when you least expect it. Approximately 10% of adults experience neck pain at any one time, with females being more affected than males.
The thoracic outlet is the area where the subclavian artery and vein and the brachial plexus leave the thorax and enter the arm. [6] These structures pass over the first rib and under the clavicle.