Definition of self-injury Self-injury
self•in•ju•ry
We found 2 definitions of self-injury from 2 different sources.
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What does self-injury mean?
Wiktionary 
- self-injury (Noun)
self-harm.
Wikipedia 
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Self-injury (SI) or self-harm (SH) is an injury that a person does to their own body on purpose. This kind of self-harm is not suicidal. In fact, many self-harmers hurt themselves because they feel it is the only way to stay alive. However, in some cases self-injury can become life-threatening, and those who self-harm are more likely to commit suicide than those who do not.
There are many different reasons why a person may do self-injury, though exact causes are often hard to tell. It may be to relieve unbearable emotions, or sensations of unreality or numbness. Self-harm is often a symptom of other problems. These problems may be include physical abuse, sexual abuse, or eating disorders. Also, it may stem from mental problems such as low self esteem or perfectionism.
Studying the causes of self-injury can be difficult or inaccurate, because many self-harmers try to hide their injuries.
Types of self-injury.
Self-injury is a general term that includes many different types of deliberate harm to one's body. There are many things that can be considered self-harm. Pushing oneself too hard physically, for example, can be a mild form of self-injury. In other mild cases, a self-harmer may purposely pick off scabs to keep cuts or scratches from healing. Hair-pulling (trichotillomania) is another mild form of self-harm.
In more severe cases, a self-harmer could end up breaking or spraining a bone, or cause a dangerous loss of blood. Biting, burning, and cutting are other forms of self
