: the act of purposely hurting oneself (as by cutting or burning the skin) as an emotional coping mechanism
An acute change in mood that persists for weeks or is associated with thoughts of self-harm should not be ignored.John Williamson

called also self-injury, self-mutilation

self-harm intransitive verb
self-harmed; self-harming; self-harms
teenagers who self-harm

Examples of self-harm in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Grieving parents, including Ellen Roome, are demanding the UK government ban social media for under-16s, citing platforms' harmful designs contributing to anxiety, self-harm, and exploitation. Belonging Forum, Forbes.com, 12 June 2026 The criteria include frantic efforts to avoid abandonment, having unstable relationships, identity disturbance, impulsive behavior, chronic feelings of emptiness, intense anger, emotional instability, paranoia or dissociation under stress, and recurrent suicidal behavior or self-harm. Angela Haupt, Time, 11 June 2026 While some incidents involving diphenhydramine may be related to the challenge, officials note that others may be an attempt at self-harm. Staff Report, Hartford Courant, 10 June 2026 Firpi concluded that Saenz should receive dialectical behavioral therapy, or DBT, an intensive therapy originally developed for self-harming women with borderline personality disorder that is now also used to treat PTSD, eating disorders and substance use. Shira Moolten, Sun Sentinel, 4 June 2026 See All Example Sentences for self-harm

Word History

First Known Use

1983, in the meaning defined above

Time Traveler
The first known use of self-harm was in 1983

Browse Nearby Words

Cite this Entry

“Self-harm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/self-harm. Accessed 14 Jun. 2026.

Kids Definition

self-harm

noun
: the act of purposely hurting oneself (as by cutting or burning the skin) as an emotional coping mechanism
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