CT Scans for Headache and Migraine Diagnosis

migraines and CT scans

A CT scan uses X-rays and computers to make images of the body. It can sometimes help doctors diagnose headaches and their causes.

You might need one if you have headaches daily or almost every day or have a sudden onset severe headache. Doctors can’t diagnose migraines with the test, though.

How Does a CT Scan Help?

The test can help your doctor rule out other causes of your pain, such as:

  • A brain tumor
  • An infection of the brain, called an abscess
  • The buildup of fluid in the brain, a condition called hydrocephalus
  • A sinus blockage
  • Injuries
  • A bulging, weak part of a brain artery, called an aneurysm, or bleeding in the brain
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