The purpose of this paper is to show the meaning of reflection on practices for supporters (medical workers or staff of citizens' groups) who help in empowering patients, in order to develop the competence of support workers. Firstly, this paper demonstrates the necessity of help for patients to gain their self-directedenss and of developinng conpetency of supporter workers to help in empowering patients. Secondly, it shows a process of supporters' developing their competence by reflecting on their practices through qualitative analysis of interviews of some staff members with Consumer for Organization Medicine and Law (NPO), who help patients solve their own problems self-directedly. Finally this paper raises the necessity of constructing an interdisciplinary approach for helping patients to gain self-directedness.