The protrusion of the large vertebrae is due to physiological reasons in the majority of cases, but in a few cases there is a related disease, the specific reasons are as follows: First, it is because the spine of the large vertebrae itself is very long, the seventh cervical vertebrae, also known as the large vertebrae, the spine is the longest of all the cervical vertebrae, and therefore the physiological basis for this protrusion. Second, this part is located at the turning point of the cervical and thoracic vertebrae, and the mobility of the thoracic vertebrae is significantly smaller than that of the cervical vertebrae, so it becomes very obvious when moving the neck. Third, the soft tissue coverage of the large vertebrae is very thin, so when the head is lowered, the overgrown cervical spinous process becomes very obvious. Fourth, in some pathological cases, the protrusion here is caused by cervical degeneration. For example, prolonged sitting and standing with the head down may cause the physiological curvature of the cervical spine to change, resulting in a more pronounced bony protrusion here. In addition, if you have cervical spondylosis, this condition will become more pronounced.