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Housecall, our weekly general-interest e-newsletter, keeps you up to date on a wide variety of health topics with timely, reliable, practical information, recipes, blogs, questions and answers with Mayo Clinic experts and more. Our biweekly topic-specific e-newsletters also include blogs, questions and answers with Mayo Clinic experts, and other useful information that will help you manage your health.
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Causes
By Mayo Clinic staffSome thunderclap headaches appear for no obvious physical reason. In other cases, potentially life-threatening conditions may be responsible, including:
- Bleeding between the brain and membranes covering the brain
- A bulge in a blood vessel in the brain, which may rupture
- A tear in the lining of an artery that supplies blood to the brain
- A tear in the membrane that surrounds the brain and spinal cord, leading to a leak of cerebrospinal fluid
- A cyst that blocks the flow of cerebrospinal fluid
- Death of tissue or bleeding in the pituitary gland
- Infection, such as meningitis or encephalitis
