: 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.
This trap is a moderate risk because, though both leaders can gain short-term political value from external toughness, the reality is their economies still need selective cooperation with each other to avoid self-harm. Newsweek Editors, MSNBC Newsweek, 14 May 2026 Chatbots have also been found to nurture delusional beliefs and even lead to self-harm. Vana Goblot, The Conversation, 13 May 2026 California requires reminders that the chatbot is an AI, notifications every three hours for users to take a break and a ban on content related to suicide or self-harm. IEEE Spectrum, 6 May 2026 Companies should be required to disclose how their algorithms promote content to minors and be held responsible for knowingly amplifying harmful material, including content linked to self-harm, exploitation, or harassment. Linh Tat, Oc Register, 4 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

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Cite this Entry

“Self-harm.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/self-harm. Accessed 17 May. 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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