This article presents an exploratory-descriptive study structured in a qualitative approach. The main objective was to identify the perception of medical-hospital materials on the work process of professionals in a medium complexity public hospital. Information has been collected using the research question: How does the materials management process influence work process? The report analysis has identified five different categories: lack of autonomy in the choice of materials, lack of maintenance of equipment, bureaucracy in the purchasing process, poor quality and absence of professional involvement in the materials management. It is concluded that the materials management is focused on the nursing direction, which requires greater involvement of other professionals in the materials choice used to reduce the weakness in that process.