Your doctor will check your symptoms and decide if you need to have tests to find out if your headaches are caused by another health problem. Tests may include:
MRI or CT scan. These imaging tests may be used to look for tumors or bleeding in the brain. But most headaches aren’t caused by anything serious, so you probably won’t need to have imaging tests.
Lumbar puncture (also called a spinal tap). This may be done if your doctor thinks that you might have a problem such as meningitis or bleeding in the brain.
Sedimentation rate (a blood test). This test can find out if another health problem is causing inflammation related to your headaches.