Objective: In this study, it was aimed to present the results of the school-based adolescent health screening program conducted within the scope of public health nursing practices. Methods: The cross-sectional study was conducted in three different schools affiliated to the Tekirdağ Provincial Directorate of National Education in the 2019-20 academic year. The research data were collected from 1913 students. Hypertension, height, weight, visual acuity, hearing, tooth decay, scoliosis, head lice and digital game addiction were screened in schools. The data were analyzed using the SPSS 21 package program using number, percentage, mean and standard deviation. Results: The average age of the students is 14,60±2,21, 52,7% of them are male. Health risks identified in students as a result of the screening are as follows: tooth decay in 51,75%, overweight in 23,9%, digital game addiction at 20,49%, scoliosis in 18,98%, decrease in visual acuity in 14,85% right eye, 13,23% left eye,7,42% in both eyes, hypertension at 10,82%, and being underweight at 9,5%. Conclusion: It has been shown that school health nurses can assume important responsibilities and roles at the stages of determining the health risks of children within the scope of school health services, trying to prevent these risks, or providing guidance for early diagnosis and treatment. The widespread use of school health nursing practices will contribute to the improvement of children's health, reducing the burden of health services, increasing the healthy and productive population and the development of the country's economy.