A bone bulge at the back of the cervical spine may be caused by physiological factors, or it may be caused by cervical spondylosis, cervical small joint disorder and other diseases, which can be treated with physical therapy or medication according to the cause. 1. Physiological factors: If there are congenital developmental abnormalities, the symptom of a bone bulging behind the cervical vertebrae may occur, which is a normal reaction and basically does not need to be treated if it has no effect on daily life. 2. Cervical spondylosis: Some patients with cervical spondylosis may have a bone bulge at the back of the cervical vertebrae due to structural changes in the cervical vertebrae. Under the guidance of the doctor, the use of ethylpiperidone, vitamin B1, celecoxib and other drugs can be used to treat, but also can be localized hot compresses, massage. 3. Cervical small joint disorder: some patients with cervical small joint disorder may have the symptom of bone bulging behind the cervical vertebrae due to muscle and nerve compression. Appropriate traction, massage, acupuncture, and also the use of medication such as blood circulation and pain relief capsules as prescribed by the doctor. If there is any abnormality, it is recommended to consult a doctor in time.