Brachial plexus injury etiology

Penetrating trauma.

Traction. Stretch injury.More likely to affect the posterior cord than the medial cord and median nerve.

First rib fracture.

Compression by hematoma.

Minor brachial plexus injuries, known as stingers or burners, are common in contact sports, such as football. Babies sometimes sustain brachial plexus injuries during birth. Other conditions, such as inflammation or tumors, may affect the brachial plexus.