Sometimes, depending on substrate, the edge of the scales can take on a tattered look. This becomes worse if the animal is new and is acclimating to it's surroundings and is therefore roaming and moving more than normal.
However, if you take into account the potential for a heating issue (burn) or an issue associated with bathing, the description could run the gamut from a burn, light rot, or pre-shed with some expected scale damage.
That's why it's always better to reduce stress, make sure all heat sources are properly regulated, avoid bathing, misting and other things that could induce rot and see if the snake doesn't go into blue.