Can shoulder pain cause headaches?

Shoulder pain may radiate to the head and cause headache, and the common causes are frozen shoulder and cervical spondylosis.
1. Frozen shoulder: often manifested as shoulder joint pain and severe limitation of activities, persistent pain often affects sleep, and may radiate to the occiput, wrist, etc., resulting in headache.
2. Cervical spondylosis: due to long-term work with the head down and use of cell phones, resulting in cervical spine muscle edema, congestion, local hyperplasia, causing shoulder pain, long-term compression of the nerves, resulting in cerebral ischemia and hypoxia, causing headaches, eye blurring and so on.
Headache may also be caused by other reasons, such as high blood pressure, sinusitis, etc., the above symptoms are recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor for standardized treatment.