Quote Originally Posted by Lolo76 View Post
Oh yeah, and how's his weight? I don't know if this happens with BPs, but I know corn snakes can get "hips" (fatty deposits) from being overweight. I adopted a VERY fat (1100g) female corn, and she has these deposits around the base of her tail... vet said it's nothing harmful, but of course I have her on a strict diet now.
I was thinking he might be underfed - 3-4 mice a month for a 5-year-old seems way too little. 3-4 medium RATS a month is better - 1 every 10 days.

Yeah, please post pictures and describe his set-up. Then we can have better input to the situation.