The protruding cervical bone at the back of the neck should be the spinous process of the seventh cervical vertebrae, which is a normal physiological structure, no need to worry about it, as long as you pay attention to resting more in daily life and don’t lower your head for a long time. The spinous process of the seventh cervical vertebra is slightly higher than the other cervical vertebrae, which can be felt on the surface of the body, and is often used as a counting mark, which is the demarcation between the thoracic and cervical vertebrae, rather than a manifestation of disease. If you need to work for a long time or bow your head in normal life, it may cause discomfort here. Therefore, you should avoid prolonged postures, and you can rest and move your neck at the right time, such as gently twisting your head back and forth and turning your shoulders. Cervical bone protrusion at the back of the neck is a normal physiological phenomenon, do not worry too much, if more protruding, you can go to the hospital in time.