Till the experts get here - is he eating regularly and getting heavier? What size is he at the moemnt and what was he when you got him?
That might help them answer you more accurately.
dr del
Derek
7 adult Royals (2.5), 1.0 COS Pastel, 1.0 Enchi, 1.1 Lesser platty Royal python, 1.1 Black pastel Royal python, 0.1 Blue eyed leucistic ( Super lesser), 0.1 Piebald Royal python, 1.0 Sinaloan milk snake 1.0 crested gecko and 1 bad case of ETS. no wife, no surprise.
How old is he?? Mature snakes shed a lot less frequently than growing youngsters. Also, is it eating adequately sized meals on a regular basis? Does it poo regularly? (even if infrequently as many pythons do)