A friend of mine has a dd (4) who since the age of about 2 pulls out her hair and now she has a huge bald patch at the back of her hair, her mum doesn't seem that worried about this, i am more concerned than she is, which is why i thought i would ask about it here to see if anyone else has experienced this. Whenever i see her she is a very happy little girl, will pass on advice to my friend. thanks