Torticollis is a condition characterized by an abnormal twisting of the neck which causes the head to tilt to one side. It has many potential causes including birth injuries, infections, muscle injuries or tightness. Symptoms include limited neck movement, neck pain and a shoulder that appears higher on one side. Treatment depends on the underlying cause but may involve gentle stretching, physical therapy, medications, or in rare cases surgery. The document defines different types of torticollis and discusses evaluation and treatment approaches.