Catalog
Chronic tension-type headache
Link to WHO Definition
Chronic tension-type headache – http://id.who.int/icd/entity/107534985
A disorder evolving from frequent episodic tension-type headache, with daily or very frequent episodes of headache, typically bilateral, pressing or tightening in quality and of mild to moderate intensity, lasting hours to days, or unremitting. The pain does not worsen with routine physical activity, but may be associated with mild nausea, photophobia or phonophobia.