The Historical Trajectory of Dermatology in Europe and Brazil: A Systemic Reading of the Relationships Between Skin, the Subject, the Environment, and Care

Dermatology has historically evolved from the observation of visible skin lesions to a complex medical specialty shaped by scientific, institutional, technological, and social transformations. This article aims to analyze the historical trajectory of dermatology through the milestones that transformed practices of care, considering the relationships between skin, subject, environment, and care. This is a historical–reflective study based on a narrative literature review conducted in PubMed/MEDLINE, SciELO, LILACS, and Google Scholar, complemented by primary treatises and institutional documentary sources, covering indexed publications issued between 1950 and 2026 in English, Portuguese and Spanish, addressing the development of dermatological knowledge from ancient civilizations to contemporary practice. The analytical scope was deliberately delimited to the European and Brazilian trajectories, and other traditions are referred to only where they establish contrast. The analysis shows that dermatology was progressively structured through clinical observation, morphological classification, standardized terminology, clinicopathological correlation, hospital-based teaching, scientific societies, specialized journals, and technological innovations such as medical photography, dermoscopy, non-invasive imaging techniques, teledermatology, and artificial intelligence. In Brazil, the specialty developed through the expansion of medical education, specialized services, scientific production, professional certification, continuing education, and public health campaigns. From a systemic perspective, these milestones reveal a shift from a mechanistic view centered on cutaneous disease to a broader understanding of the individual within biological, subjective, social, environmental, technological, and healthcare contexts. This trajectory was, however, neither linear nor uniformly beneficial: stigmatization, unequal access, and dependence on technology accompanied it and persist in certain contexts. Dermatology’s history is therefore not only a history of diseases and techniques, but also of changing ways of observing, interpreting, and caring.