Headache for half a month; doctor recommends CT scan

Headaches lasting for half a month are considered prolonged and may be caused by various factors. They could be due to intracranial lesions such as tumors, cerebral vascular malformations, intracerebral hemorrhage, or cerebral infarction; or they may arise from extracranial causes, such as sinusitis, glaucoma, or nerve compression caused by cervical spondylosis. Additionally, functional factors such as mental stress and excessive pressure could also be responsible. CT scans are important for ruling out intracranial structural abnormalities, as they provide clear images of the skull and brain tissue, helping to detect space-occupying lesions, hemorrhages, and other conditions.

Follow your doctor’s recommendation to undergo CT scanning in order to exclude serious intracranial diseases. If no significant abnormalities are found on CT scan but headaches persist, further investigations may be necessary, such as magnetic resonance imaging (MRI), cervical spine examination, or intraocular pressure measurement, to comprehensively identify the underlying cause.