When is imaging necessary for headache?
Short answer
Imaging is generally reserved for headaches that are new, sudden, worst-ever, associated with neurological changes, or accompanied by other red flags. Routine migraine does not require imaging.
More detail
History and examination guide the decision. When findings are consistent with typical migraine and no red flags are present, imaging usually does not change the plan.
When imaging is indicated, it is used to rule out structural or vascular problems and to inform decisions about further specialist involvement.
Seek urgent care for any of these
- Sudden, severe 'worst headache of your life'
- New neurological deficit — weakness, speech changes, vision loss
- Headache with fever, stiff neck, or confusion
- New headache after age 50
- Headache following significant head trauma
If you are experiencing any of the above, contact emergency services or go to the nearest emergency department.
This information is educational and general in nature. It is not a diagnosis or a treatment plan, and it does not describe every possible cause of a symptom. Individual evaluation is required to determine what applies to any specific case.
Related service
Migraine & Persistent Headache Care
Evaluation and individualized care for migraine, post-traumatic headache, and persistent headache patterns.
Learn more about Migraine & Persistent Headache Care