This article offers a glimpse into the relatively hidden practice of self-injury: cutting, burning, branding, and bone breaking. Drawing on eighty in-depth interviews, Web site postings, e-mail communications, and Internet groups, we challenge the psychomedical depiction of this phenomenon and discuss ways that the contemporary sociological practice of self-injury challenges images of the population, etiology, practice, and social meanings associated with this behavior. We conclude by suggesting that self-injury, for some, is in the process of undergoing a moral passage from the realm of medicalized to voluntarily chosen deviant behavior in which participants' actions may be understood with a greater understanding of the sociological factors that contribute to the prevalence of these actions. L ong a subterranean topic, the deliberate, nonsuicidal destruction of one's own body tissue emerged from obscurity in the 1990s and began to spread dramatically. Self-injury has gone by several names, though self-harm and self-mutilation have been the other most common appellations. 1 While any language may suggest an implied judgment about the behavior and selfinjury certainly invokes a more favorable connotation than self-mutilation, we use the term self-injury since it was used by our respondents most frequently. 2 Although a range of behaviors may be considered self-injurious,