My 12 year old sister just told me that she cuts herself.  They are on her leg and not deep and it does seem she is using this as a coping mechanism rather than a suicidal actiin.  I am in my early 20's and she is my world but telling our mom, whom we live with together, well I am unsure if this is the best option.  I got our mom to contact a therapist yesterday to get my sister into counseling but I found out she does this just last night.  My sister lost her father (long story) and says she cuts herself because of fighting with our mom.  Do I tell my mom, contact the therapist..?  My concern is that my sister and I have a special bond, she is my world, and confides in me and no one else in the family.  Do I burn that bridge and tell our mom who could not do anything but make the situation worse or just contact the therapist she will be seeing?  I really need advice...  Please help.