Common Causes of Headache
Primary Headache | Secondary Headache | ||
---|---|---|---|
Type | % | Type | % |
Tension-type | 69 | Systemic infection | 63 |
Migraine | 16 | Head injury | 4 |
Idiopathic stabbing | 2 | Vascular disorders | 1 |
Exertional | 1 | Subarachnoid hemorrhage | <1 |
Cluster | 0.1 | Brain tumor | 0.1 |
Source: After J Olesen et al: The Headaches. Philadelphia, Lippincott Williams & Wilkins, 2005.