A cervical collar is a medical device designed to support and immobilize the neck. It is commonly used after injuries, surgeries, or conditions affecting the cervical spine, which is the upper part of the spine that supports the head. The collar helps prevent movement that could worsen an injury or delay healing. Cervical collars come in various types, including soft collars for minor injuries and rigid collars for more severe cases. They are often used in emergency situations, such as car accidents, to stabilize the neck before further medical evaluation. Proper use of a cervical collar can aid in recovery and protect the spinal cord.