The possible causes of neck pain include neck and back fatigue and spasm, acute and chronic muscle injuries, cervical spondylosis, and so on. 1. Neck and back fatigue and spasm: Neck and back fatigue and spasm mainly refers to the neck and back to maintain a posture for a long time, resulting in muscle tension for a long time and spasm symptoms, which may lead to the phenomenon of back pain after turning the neck. 2. Acute and chronic muscle injury: the muscles of the neck and back may be subjected to strenuous exercise caused by ligament injury, or sprains caused by the cumulative injury, resulting in acute and chronic muscle injury, often causing local pain, stiffness, etc., may cause the phenomenon of turning the neck and back pain. 3. Cervical spondylosis: it may be due to long-term neck strain, disc herniation, osteophytes, etc., resulting in cervical spinal cord, nerve roots or vertebral arteries, etc., compression, thus triggering cervical spondylosis, which may cause pain in the back of the turning neck phenomenon. Turning the neck back pain may also have other reasons, it is recommended to go to the regular hospital in time to improve the relevant examination, clear the cause of the disease, under the guidance of the doctor for targeted treatment or treatment.