Patients with pain on the right side of the back of the head may be caused by cervical spondylosis, or occupational lesions of the posterior cranial fossa, as follows: 1, cervical spondylosis: including cervical spine curvature straightening, cervical spine osteophytes and cervical disc protrusion, and the patient may have shoulder muscle pain and discomfort, or muscle pain in the back, or cervical pain and discomfort, and check the cervical spine MRI for a clear diagnosis if necessary. Massage, acupuncture and physiotherapy can be carried out, and if necessary, go to the orthopedic department to find a specialist for detailed diagnosis and treatment.2. Occupational lesions in the posterior cranial fossa: If the patient has occupational lesions in the posterior cranial fossa, it may also cause pain in the right side of the back of the head, and at the same time, nausea and vomiting may occur, and visual impairment may also occur, including visual field defects and blindness, hemianopia and quadrant blindness, and if necessary, the patient should be examined by the cranial brain MRI to make a clear diagnosis, and the onset of the disease should be Hospitalization.