If there were mites, you would most likely notice specks moving around on your snake. You could take a slightly damped paper towel and gently wipe the head and upper neck area, and then check out the paper towel. This will help in noticing the specks (potential mites).
~Jason
0.1 = Normal - Axanthic VPI - Queen Bee - Cinnamon - Cinnapin - Normal Het Pied - Spider Het Axanthic TSK - Bee - Fire
1.0 = Pied - Pewter - Lesser - Spider - Snow TSK - Fire Het Clown
Or you could run your hand down the snake then look at your hand.
0.0.1 hog island boa
1.0 het pied BP
1.0 mojave BP
0.3 normal BP'S
0.0.4 hog noses
0.0.3 garter snakes
0.0.1 bull snake
0.1 Red tail boa
1.0 normal burm