Headache Cluster Evaluation
The evaluation of cluster headaches begins with a medical history and physical examination.
The physical examination is usually normal.
Physical findings that may occur during a cluster headache include:
- Conjunctival injection (red eyes)
- Eyelid swelling
- Facial flushing
- Facial sweating
- Watery eyes
- Constricted pupils
- Nasal congestion
- Drooping eyelid
- Runny nose
To make the diagnosis of cluster headaches, there should be at least 5 clustered attacks of severe, one-sided pain around an eye. The headaches must last from 15-180 minutes.
There are no specific tests that confirm the diagnosis of cluster headaches. Tests may be performed to exclude other causes for headache.
Tests that may be used to evaluate cluster headaches include:
Headache Cluster Similar Conditions
Conditions that can cause symptoms similar to cluster headaches include:
Continue to Headache Cluster Treatment
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- Lipton RB, Bigal ME, Steiner TJ, Silberstein SD, Olesen J. Classification of primary headaches. Neurology. 2004 Aug 10;63(3):427-35. 
- Rozen TD. Cluster headache: diagnosis and treatment. Curr Pain Headache Rep. 2005 Apr;9(2):135-40.