self-injury definition

 https://screening.mhanational.org/screening-tools/self-injury-survey/?ref

In this survey, we want to learn more about times when you’ve hurt yourself on purpose without wanting to die. When we say self-injury, we mean doing something that causes immediate pain or physical injury.

• Self-injury includes things like cutting, burning, or scratching your skin*.
• Self-injury does not include things that don’t cause immediate pain, like eating too much or too little, using drugs or alcohol, or over-exercising.
• Self-injury also does not include things that cause immediate pain but are socially acceptable, like getting piercings and tattoos.

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*i was struck by "SCRATCHING YOUR SKIN" :-) well, dermatitis is stress-related, but not technically speaking, self-harm but could it be called "micro self-harm"? :-)

oh, I've had service users who use sharp objects to scratch their skin as though writing on it! i think this is what is intended here...