on the tv show, dr house did it while he was in cold turkey from vicodin. something about an endorphin release.
It is for me. Not temporarily either like someone suggested.
There must be something to it. Cutting hurts. And it leaves scars. Permanent scars.
People do not do that to themselves for NO reason at all. Whatever the reason, it isn't because they want to be permanently disfigured.
Its different for everyone
I did it even though I knew it would leave Scars