: 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.
The Nest’s check-in form includes a question regarding self-harm and suicide, for example, which could be flagged and sent to the school’s crisis team. Abigail Min, Mercury News, 27 Mar. 2026 The slow burn of Santos getting repeatedly plowed over with stress and emotion has led her to contemplate self-harm again. Maggie Fremont, Vulture, 27 Mar. 2026 Features such as infinite scroll and auto-play videos keep kids on the site, fostering addictive behavior that can lead to depression, anxiety and self-harm, the lawsuit claims. Diana Novak Jones, USA Today, 25 Mar. 2026 In its complaint, the state accused Meta of purposely designing features like infinite scroll and auto-play for videos to keep kids hooked on the apps, leading them into depression, anxiety, and self-harm. Jibin Joseph, PC Magazine, 25 Mar. 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 4 Apr. 2026.

Kids Definition

self-harm

noun
: the act of purposely hurting oneself (as by cutting or burning the skin) as an emotional coping mechanism
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster