Purpose: This study aims to increase the understanding of the starting points and presuppositions of organizational learning (OL) processes in a hospital's surgical department based on the existing theory of OL and to make visible the practical possibilities of the theory in this context. Design/methodology/approach: The study was conducted as a case study. The data were collected from personnel of the hospital's surgical department and consisted of 26 thematic interviews. The data were analyzed using qualitative theory-driven content analysis. Findings: This study found different starting points for both employee-oriented and organization-oriented learning processes that could potentially progress to different levels of the organization: from individuals to a wider group or from a large group to an individual. The starting point of employee-oriented learning processes was depicted as everyday life problems or situations or was based on the person's interest. The starting points of organization-oriented learning processes were described as achieving or maintaining the organization's expected skill levels, pursuing continuous development or pursuing the organization's specific development needs. Different kinds of presuppositions were also located within the OL processes. Originality/value: This study produced new practice-based knowledge about the starting points of OL processes and their presuppositions. In health-care organizations, learning is especially important due to intensive and complex changes, and this study provides empirical evidence on how to enhance learning.