Headache Origin of headache: Stimulation of peripheral nocioreceptors due to tissue injury Damage of pain producing pathways of peripheral or central nervous system. COMMON CAUSES of HEADACHE Primary Headache Secondary Headache Tension-type Systemic infection Migraine Head injury Idiopathic stabbing Vascular disorders Exertions Subarachnoid Hemorrhage Cluster Brain tumour Pain producing cranial structures: Scalp, Middle meningeal artery, Dural sinuses, Falx cerebri, Proximal segments of large pial arteries. Headac...
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