Bone protrusion in front of the neck may be caused by physiological phenomenon, spinal deformity, localized calcification and other reasons. 1. Physiological phenomenon: there is thyroid cartilage or annular cartilage in the front of the neck itself, and normal bony protrusions may occur, which belong to the normal physiological structure of the human body. 2. Spinal deformity: If the patient has scoliosis, cervical spine injury, etc., it can lead to bony deformity of the cervical spine, which will lead to the phenomenon of bone protrusion in front of the neck. 3. Localized calcification: This may be due to calcification in the thyroid gland or destructive calcification of the anterior cervical muscles caused by neck injuries, resulting in the appearance of a bulging anterior neck bone. The bulging of the bones in the front of the neck may also be caused by other reasons, it is recommended to go to the hospital in time and follow the doctor’s instructions for treatment to avoid delaying the condition.