National Alliance on Mental Illness: Self-Harm.
Self harm refers to a person's harming their own body on purpose. A person who self harms usually does not mean to kill himself or herself, but they are at higher risk of attempting suicide if they do not get help. Self harm tends to begin in teen or early adult years. Some people may engage in self harm by cutting or burning themselves, pulling our hair or picking at wounds to prevent healing. Self harm is not classified as a mental illness, but several illnesses are associated with it, including Borderline Personality Disorder, depression, eating disorders, anxiety or Post-Traumatic Stress Disorder. Those who have experienced neglect, abuse or trauma are at a higher risk to self-harm, as well as a person who binge drinks or abuses drugs.
HARMING ONE'S OWN BODY ON PURPOSE