Perfectionism research has burgeoned over the past two decades. During this time, there have been a number of empirical and theoretical advances providing insight into the nature of perfectionism and its associated risks. Broadly, perfectionism can be described as setting and striving for excessively high and often unrealistic standards, accompanied by frequent thoughts focused on attainment of these standards and overly critical self-evaluation (Frost, Marten, Lahart, & Rosenblate, 1990). However, it is now recognized that the perfectionism construct is multidimensional, as shown simultaneously by the work of Frost and associates (1990) and by Flett (1990, 1991). This recognition has, nonetheless, complicated the field with respect to understanding the implications of different perfectionism dimensions for health and well-being. Yet, navigating the complexities of these issues has important theoretical and clinical repercussions. If we consider perfectionism as a relatively stable tendency, as many researchers do, then the potential benefits of understanding how, why, and when perfectionism may confer risk or resilience for health and well-being can be far-reaching. For example, personality is increasingly being recognized as an important epidemiological factor for understanding health-related trajectories and outcomes, including morbidity and mortality, in part through its associations with modifiable risk factors for the development of mental As of July 1, 2015, Fuschia Sirois is with the