A cervical collar is a medical device designed to support and immobilize the neck. It is commonly used to prevent movement after injuries, surgeries, or conditions affecting the cervical spine. The collar helps to stabilize the head and neck, reducing the risk of further injury and promoting healing. Cervical collars come in various types, including soft and rigid versions. Soft collars provide gentle support, while rigid collars offer more stability for serious injuries. They are often used in emergency situations, such as car accidents, and can also be prescribed for conditions like cervical spondylosis or whiplash.