Whiplash is an injury to the neck resulting from a sudden jerking of the head. This trauma strains tissues and joints beyond their normal range of motion, which may cause pain and stiffness either right after the injury or at a later time.

Motor vehicle accidents are the most common causes of whiplash. According to the American Academy of Orthopaedic Surgeons, about 20 percent of individuals who experience rear-end collisions later exhibit symptoms in the neck region. Other sources of whiplash include amusement park rides, sports injuries and being punched or shaken.

Whiplash is usually diagnosed through a physical examination and use of imaging tests such as x-rays or MRI.

Treatment for whiplash may include medications and physical therapy. Some patients may also experience relief by using a cervical collar that secures the neck vertebrae in their normal position. With proper treatment, most patients fully recover within a few months after the injury.