Causes of Cluster headache

Cause details for Cluster headache: Research studies have turned up several clues as to the cause of cluster headache, but no answers. One clue is found in the thermograms of untreated cluster patients, which show a "cold spot" of reduced blood flow above the eye.¹

Related information for causes of Cluster headache: Further relevant information on causes of Cluster headache may be found in the risk factors for Cluster headache and underlying causes of Cluster headache.

Footnotes:
1. excerpt from Headache - Hope Through Research: NINDS

Last revision: October 23, 2003

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