Headache is a common problem among adolescents, and variations can be observed in headache types and characteristics. The present study aimed to reach 5562 Turkish children who were investigated six years previously in a school-based childhood headache project, and to evaluate their current headache status. Investigators interviewed the available students with structured questionnaires. New and old data were matched and analyzed. The present study included 1155 adolescents (mean age 15.2 +/- 1.1 years), with 582 boys (50.4%) and 573 girls (49.6%). The prevalence of headache was 78.7% (tension-type headache [TTH] 57.5%, migraine 18.6%, unspecified 2.6%). The prevalence of headache was 45.2% six years previously. In the intervening six years, headache prevalence increased and the headache types changed significantly (Kappa: 0.04, p<.01). The most important variation during this time was the significant increase in TTH. Analgesic use was determined in 70.2% of adolescents with headache, with this ratio being higher in migraineurs. In conclusion, there were an increase in headache prevalence and a significant change in headache types over the previous six years. It can also be suggested that new country-based management strategies are required.