Why does my neck hurt when I sleep on my side?

Sleeping on your side with neck pain is most likely caused by physiological reasons, or it may be caused by cervical disc herniation, cervical spine infection, cervical spine tuberculosis or tumor.
1. Physiological reasons: If the pillow is too high or the neck is cold when sleeping, it will make the neck pain, proper rest can be.
2. Pathologic causes: Patients with cervical disc herniation will experience pain and limited movement. In addition, if the cervical spine is infected, tuberculosis, osteophytes or tumors, it will compress the nearby vertebral artery or nerve root, which will cause pain, numbness, dizziness and other symptoms.
If there are long-term symptoms of neck pain when sleeping on the side, it is recommended to go to the hospital in time to find out the cause of this situation, and then carry out targeted treatment.