The seventh cervical vertebra is located on the posterior side of the lowermost part of the neck, a location that is very easy to find, especially in thinner patients. When looking for it, the patient is asked to fully expose the posterior side of the neck, and then the patient is asked to hyperflex the neck, at which point a distinct bulge can be seen on the lowermost posterior side of the cervical spine, which is hard to the touch, and this area is the spinous process of the seventh cervical vertebra. The seventh cervical vertebra is also known clinically as the augmentation vertebra, and is a very important localization marker. The number of thoracic vertebrae can be determined through the determination of this part, and it is a very important guide for physical examination and surgical operation. In Chinese medicine, the seventh cervical vertebra is a very important point under the spinous process, clinically known as the large vertebra, which is mainly used to treat localized diseases of the cervical spine and fever-like diseases. Injury to the seventh cervical vertebra often leads to symptoms in the entire cervical spine and the upper thoracic spine.