. >> prison psychologist mary ruth simms conducts group therapy with cutters and other self-mutilatorsash's secured housing unit. >> if i see my blood, i'm in another world, i'm somebody totally different from myself. that's the only time i can actually, you know, feel real, feel alive, feel like everything's going to be okay. >> simms says this particular group does not injure themselves for the typical reasons. >> they self-injured as a way to control their level of pain. that when they're in so much pain they don't know what to do, they are starting to feel like suicide, self-injury cuts their level of pain down so it is pain control. >> you give the baby a bottle because he is crying, change his diaper. me you give me something sharp to hurt myself with and i'm fine. >> you're communicating things are not okay for yourself. >> if i don't cut myself at least once a week i'm not right. >> some people here think there's nothing good in them at all, that they've messed up totally and they're totally worthless. >> i know the problems i have need to be fixed. i've got a 6-year-old daught