Pain on both sides of the back of the neck is most commonly associated with cervical cervical spondylosis, radicular cervical spondylosis, vertebral artery cervical spondylosis, and spinal cord cervical spondylosis. 1. Cervical cervical spondylosis: muscle aches and pains due to muscle spasm, strain or fasciitis in the neck. Cervical cervical spondylosis mainly manifests as discomfort in the back of the shoulders, with clinical symptoms of muscle soreness and pain in the area of the two shoulder blades or soreness on both sides of the neck. 2. Neurogenic cervical spondylosis: The nerve roots in the neck are compressed, resulting in numbness and pain in both sides of the neck or one side of the upper limbs, which may cause muscle atrophy at a later stage. 3. Vertebral artery-type cervical spondylosis: Vertebral artery-type cervical spondylosis is usually related to ligament calcification and cervical vertebral osteophytes, which can easily compress cervical blood vessels and lead to insufficient blood supply to the cervical artery, and may cause dizziness as well as pain at the back of the neck. 4. Spinal cord cervical spondylosis: Myeloid sensory, motor and reflex disorders are caused by herniated cervical discs compressing or irritating the spinal cord. Initially, there may be numbness in one or both upper limbs, muscle stiffness and pain at the back of the neck. Pain on both sides of the back of the neck may also be caused by other diseases, it is recommended to go to the orthopedic department of the hospital for a clear examination and treatment under the advice of the doctor.