Answer by
tanayafarr (290)
Dandruff is caused by dry scalp and appears as flakes in your hair. Lice are insects that lay eggs in your hair and feed off of your scalp. Lice makes scalp severely itch. To tell the difference, blow into your hair. If the white flakes move it is dandruff. With lice, eggs will be on hair folicles close to scalp.