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date: 19 October 2019

There are more than 100 different kinds of headache that are clearly classified and defined in the International Classification of Headache Disorders.

A proper headache diagnosis is essential for patient management.

Distinction is made between primary headaches, which are independent diseases, and secondary headaches, which are caused by another disease.

Among the primary headaches, migraine is the most important because of a 10% prevalence combined with severe intensity.

Migraine is among the 20 most burdensome diseases according to the World Health Organization.

Migraine costs European society 27 000 million euros per year, mostly due to lost working time.

Non-migraine headaches are estimated to cost an equal or even greater amount, but their impact has been poorly described.

Headache is the most common reason for consultation in neurological specialist practice and a common problem in general practice.

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