Abstract
Objective: To evaluate the impact of dysmenorrhea in adolescents and to identify the level of knowledge about the subject. Methods: Descriptive, exploratory, cross-sectional study with a quantitative approach, conducted at a State Reference School in Secondary Education in Pernambuco, with a sample of 50 students, carried out over a period of 30 days. Results: It was observed that the majority of adolescents (78%) had no knowledge regarding menstrual disorders, which shows that there is still a need for clarification on the part of the adolescents, about the menstrual cycle and its possible disorders. As for school absenteeism, 56% said they had already missed class due to pain during their menstrual period, which showed the effect of dysmenorrhea on the lives of adolescents. Conclusion: In this sense, it is perceived that there is a need to value complaints regarding menstruation, since these can directly affect health, quality of life and school performance, as well as greater effectiveness ofthe School Health Program.