Calcification of the collateral ligament is usually caused by degenerative changes in the cervical spine due to trauma to the neck ligaments, prolonged bowing of the head, and inflammation of the collateral ligaments. The collateral ligament refers to the ligament behind the cervical spine that serves to stabilize the cervical spine. When the cervical ligament is traumatized and not properly and thoroughly treated, degenerative changes in the cervical spine are likely to occur, causing calcification of the collateral ligament. Long-term low head reading, cell phone, work or long-term bad posture using computer, make the cervical spine long-term in a state of strain, it is easy to appear cervical degenerative changes, caused by calcification of the collateral ligament. Inflammation of the collateral ligament will secrete a calcareous secretion, forming the phenomenon of calcification of the collateral ligament. Patients should try to avoid low head activities, hot compresses, and proper treatment under the guidance of professional doctors.