: 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.
While in foster care, the daughter was involuntarily hospitalized and forcibly medicated, while the toddler and his brother started bed-wetting and engaging in self-harm. Cayla Bamberger, New York Daily News, 28 May 2026 Clifton Prescod / Bravo Dillard shared that he was diagnosed with BPD, or borderline personality disorder, last fall after he was hospitalized for self-harm. Pilar Melendez, NBC news, 27 May 2026 Bies said detention staff follow protocols to protect detainees who show signs of self-harming and that ICE requires annual suicide prevention training. Ryan J. Foley, Chicago Tribune, 27 May 2026 Bis said detention staff follow protocols to protect detainees who show signs of self-harming and that ICE requires annual suicide prevention training. Ryan J. Foley, Los Angeles Times, 27 May 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 5 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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