RESUMEN
Governance refers to all processes that grant nurses autonomy, control and authority over the nursing practice. The aim of this study was to identify intervening conditions on governance of nursing practice at an obstetrics centre. This is a qualitative study based on the grounded theory method. Data were collected between January and May 2013 by means of semi-structured interviews with 27 participants of a university hospital in southern Brazil, divided into four sampling groups. Data were analysed using open, axial and selective coding. Governance is reinforced by experience and professional autonomy, coordination of the care and management dimension, interpersonal communication, satisfaction and engagement with the profession. It is limited by difficulties with interpersonal relationships, work overload and precarious physical structure of the maternity units. This study provides arguments for the discussion on improvements in healthcare and the professional satisfaction of nurses and nursing teams.