self-injurious

From self- +‎ injurious.

self-injurious (comparative more self-injurious, superlative most self-injurious)

1. Causing injury or harm to oneself.
   • 2021, Erin Felepchuk, “Stimming, Improvisation, and COVID-19: (Re)negotiating Autistic Sensory Regulation During a Pandemic”, in Disability Studies Quarterly, volume 41, number 3:

     We are also perpetual stimmers: displaying or masking our stims, engaging in self-injurious or artistic stims, creatively expressing ourselves, or responding to trauma or stim suppression.

• SIB