A neck injury is any injury to the structures found in the neck area, including muscles, ligaments, tendons, and bones. Although a rigid structure, the neck can be easily injured by abrupt movements or sudden external force. Common causes of minor neck injuries include neck strain, improper pillow support, and odd neck posture. Although these can cause pain and neck stiffness, the symptoms typically go away after addressing the root of the problem. Moderate neck injuries can affect your day-to-day activities, including work. Mild neck injuries can cause more than pain, inflammation, and limited range of motion. Additional symptoms include:  Prolapsed discs Whiplash  Cervical spondylosis  Herniated discs Severe neck injuries involve significant damage to the neck area. These types of injuries often lead to varying degrees of temporary or permanent paralysis. Severe neck injuries are devastating and debilitating and need intensive medical treatment.