noun, noun or participle which takes 'suru', intransitive verb
self-harm; self-injury; self-mutilation
Refers to deliberately harming one's own body, often in a psychological context. Can be used as a noun or with する to mean 'to self-harm'.
彼女は思春期に自傷を繰り返していた。
She repeatedly self-harmed during her adolescence.
自傷行為
Self-injurious behavior may be a serious sign.