Student Leagues have gained increasing presence in the everyday lives of student doctors. The reasons why students seek them arise from their needs for clinical experience, socialization and professional qualification. However, several Leagues have shifted away from the principles of higher education extension studies, giving rise to a parallel curriculum, filling curricular gaps, providing premature specialization and reinforcing bad learning habits. It is therefore necessary to reconsider Student Leagues in terms of their social and academic relevance, their objectives and responsibility in relation to medical training, interdisciplinarity, the SUS and ethical principles, with a view to integration between education, research and university extension programs, in order to meet public demands and contribute toward medical training.