The concept of patient participation has an array of interpretations and lacks clarity. The purpose of this article is to explore the concept of patient participation within the context of nursing practice. The method described by Walker and Avant (1995) is used. The critical attributes of the concept are identified. Formation of model, borderline, and contrary cases exemplifies key characteristics. Antecedents, consequences, and empirical referents presented allow for further refinement of the key attributes defining the concept. Patient participation in nursing practice can be defined as an established relationship between nurse and patient, a surrendering of some power or control by the nurse, shared information and knowledge, and active engagement together in intellectual and/or physical activities.