During the delivery of a newborn, it is often due to obstructed labor, prolonged retention of the newborn in the birth canal, and compression of the limb; or strong pulling of the limb during assisted labor causes nerve pulling injury, and brachial plexus nerve injury is more common among birth injuries. Injuries to the brachial plexus nerve, radial nerve and dorsal interosseous nerve of the forearm often occur.
Injuries to the brachial plexus nerve caused by birth injuries are: 1.