Classification of headaches

Area of Science:

• Neurology
• Epidemiology

Background:

• Early headache classifications relied on subjective glossary definitions.
• The need for objective, operationalized criteria in headache diagnosis was recognized.

Observation:

• The International Headache Society (IHS) published its first classification in 1988, utilizing empirical findings and operationalized criteria.
• This classification was rapidly translated and adopted globally by major neurological and health organizations.

Findings:

• The IHS classification spurred significant advancements in headache research, particularly in pathophysiology and epidemiology.
• The classification's empirical and evidence-based approach fostered unparalleled growth in headache knowledge.

Implications:

• The IHS classification serves as a foundational, frequently cited milestone in headache science.
• It has profoundly impacted the diagnosis and research of headache disorders worldwide.