Introduction: The study gives an overall picture of how mental illness has become an increasingly common condition among children and young people. Therefore, teenage girls are a particularly vulnerable group with a higher incidence of mental illness, mainly due to society's pressure on norms and values about appearance. Research shows that there is an interaction between mental illness and body dissatisfaction, and since girls in their teens spend a lot of time in school, it is of great importance to explore how the school works with this vulnerable group. The aim: The study’s aim was to explore how PE teachers work with body images among girls in the middle school. This is to increase understanding of possible factors that can affect the body image of girls in adolescence. Method: In order to be able to answer the study's aim, a qualitative choice of method was chosen in the form of individual semi-structured interviews in which a total of 10 participants had to represent the result. Result: The result is based on the PE teachers' experiences and thoughts on how to work with the subject body images among girls. Since there are no guidelines in the curriculum for how PE teachers should work with the problem, the public health work should therefore investigate the need for the volnurable group so that the PE teacher's work methods can be developed. Conclusion: Due to the limited research, there is a need to further study body image based on a qualitative and quantitative aspects to give a clearer picture of the PE teacher's way of working.