Headache in young age: classification of primary forms.

The high prevalence of headache in young age has a significant impact on patients and their families. Migraine and tension-type headache are the most common forms of headache for which young patients see a physician. Recent studies confirm the increasing incidence of migraine and also chronic migraine in the pediatric population. The article reviews the most important diagnostic categories of headache in young age and the limitations of the classification criteria for this group of patients.