Sorry to hear about your little girl. I have trichotillomania which is hair pulling.Ive been doing it since the age of 9.I use to have a mass of hair and long thick eyelashes, well no more, I don't have any eyelashes left and my hair is becoming thinner and thinner every day.I'm 36 years old and I hate what I do but also love it when I 'm doing it and feel down after.I could lay or sit down and just pull for hours.I do it when I'm driving too. I wan't so much to stop but just can't.It is an anxiety thing and I hope your little girl will get over it.If you need to ask me anything please just ask.
It sounds like it could be trichotillomania, which is considered an anxiety disorder. Does she do this often? Does it seem to be compulsive? cutting could also be a way for her to deal with anxiety. pulling out a strand or two of hair once in awhile is normal, but it's a problem if she's pulling out clumps of hair. I would reccomend taking her to her pediatrician for an evaluation and he/she should be able to refer you to children's mental health clinician for further evaluation if it's warranted. Best of luck.