Non-suicidal self-injury (NSSI) refers to the intentional act of causing harm to one's own body without the intention of ending one's life. This behavior often serves as a coping mechanism for emotional distress, allowing individuals to express feelings that may be difficult to verbalize, gain relief from overwhelming emotions, or exert control over their bodies. Understanding NSSI is crucial because it can be linked to various mental health issues, including depression, anxiety, and borderline personality disorder.