blue/white spots on head

[go_sk8ing_360]

hey everyone my crestie has had these spots on his head for a bit they change places every once in a while uhmm there sometimes on the rest of his body but most noticable on his head. The spots are light blue almost white i notice them easily cause my gecko is dark dark brown....The only thing i can seem to think it is is scales that didnt shed off but what do u guys think?