Having had surgery on the cervical spine does not necessarily mean that there will be after-effects, but there may also be after-effects such as cervical instability, neck pain, dizziness or numbness in the arms. A range of sequelae may occur after cervical spine surgery, but it depends on the severity of the cervical spondylosis and the recovery effect. If the degree of cervical spondylosis is mild and the post-operative care is proper, paying attention to keeping warm and changing bad postures, the later recovery effect of cervical spondylosis is better, and the sequelae left behind are smaller. However, if the cervical spondylosis is more serious, with severe nerve compression prior to the treatment, resulting in obvious pain in the cervical spine, limitation of movement, and severe numbness in the hands and feet, and the causative factors have not been removed due to lack of careful post-surgical care, the after-effects may occur. Common sequelae after cervical spondylosis surgery include instability of the cervical vertebrae, easy to slip, neck pain with dizziness, numbness of the arms, etc., and postoperative wound infections may also occur. Therefore, it is important to pay attention to care after cervical spondylosis surgery in order to promote the recovery of the body and prevent the occurrence of sequelae.