One of the most common children's ailments are headaches--based on literature--about 75% of the population under the age of 15 suffers from them. The aim of the study was to evaluate the influence of headache on the quality of life in children and adolescents. The study group was made up of 86 persons between the age of 12 and 18. The study was conducted with the help of an anonymous questionnaire in the form of inquiry that was identical for all the respondents. The questions, contained in it, played a multidimensional role since, on one hand they were related to the mental, physical and social problems and on the other hand they informed us about the headaches frequency, intensity and localisation. The questionnaire was worked out on the basis of the Questionnaire Quality de Vie Migraine--QVM and it was modified for the needs of the conducted studies. The respondents were the patients of Chair and Department of Developmental Neurology at the University of Medical Sciences in Poznań and their outpatient clinic. The studies also took place in the region of Kościan, the primary and secondary school in Poznań, in school infirmaries where children and adolescents where because of headaches. Changes in the bio-psycho-social existence in the examined groups were found. Negative emotional states and the feeling of diminished self-value in children and adolescents were estimated. High sickness absences at school, which didn't influence school records were also observed. A correlation was found between the experienced stress and the frequency of headache.