self-mutilation

Self-mutilation, also known as self-harm or self-injury, is the act of purposely hurting oneself. This behavior is often used as an emotional coping mechanism, involving actions like cutting or burning the skin. While the term "self-mutilation" has been used since the 17th century, the more specific understanding of it as a coping mechanism emerged in the late 20th century.12

Dialectical Behavior Therapy (DBT) is a form of psychotherapy developed in the 1980s to treat chronic self-harm and suicidal behaviors, particularly those associated with borderline personality disorder. DBT emphasizes accepting all feelings and behaviors while working to change certain actions. It teaches skills such as mindfulness, emotional regulation, interpersonal skills, and stress tolerance to help individuals manage difficult emotions in a healthy, nondestructive manner.3