Nonsuicidal self-injury (NSSI) has many behavioral and cognitive features that would make it appear to be closely tied to obsessive-compulsive disorder (OCD). Obsessive-compulsive-related disorders (OCRDs) have been described in the literature as conditions that share a common phenomenology, neurobiology, and treatment response. The authors reviewed the literature describing the degree that NSSI is similar to, and distinct from, OCRDs based on these hypothesized common areas. They conclude with recommendations for conceptualization that draws partly from the OCRD literature and from cognitive-behavioral models of rumination.