Self-Injury Cutting: Cutting Yourself to Relieve Emotional …

The self-injury cutting is done any time you purposefully break the skin and make it bleed. Cutting might be done with a knife, razor blade or broken glass. The cuts do not have to be deep to be considered self-mutilation. Cutting is often done on the hands, wrists, arms, thighs, and stomach.

https://www.healthyplace.com/abuse/self-injury/self-injury-cutting-cutting-yourself-to-relieve-emotional-pain