The purpose of this article is to present a case for the value of argumentation as an instrument of rational persuasion in doctor-patient (and general health professional–patient) communication. By doing so, I also emphasize the value of argumentation theory—as a body of knowledge devoted to the study of argumentation—both to enrich the study of doctor-patient communication and to enhance its quality by contributing to dedicated training courses for health professionals and patient education interventions. Argumentation is used in health professional–patient interactions, (...) and its significance in this context has been acknowledged in recent literature (see the collection of articles in Rubinelli and .. (shrink)