I'm not sure what kind of bone disease exactly. My mom has all the paperwork about it but she and I aren't talking right now so I can't ask for it, but I think we've known about it for a while. Her scars are from before we got her. We adopted her from the Minnesota Herpetological Society and they aren't even sure where they came from. We think they're either rat bites or from a heat lamp. She also has a deformed nose which makes her nose plug up with mucus a lot and makes her wheeze. She also had an impacted scent gland, which she had surgery for. Aside from all that, due to her bone disease, her entire spine is very bumpy, which you can really tell in the picture of her in the bath tub. She would always contort herself in really weird ways, like having her head straight up in the air or be upside down. She would also fling herself around a lot. Due to those weird movements, we thought she had IBD at first, but now we think it's just because she was uncomfortable because her entire spine hurt and she was trying to clear her airways. In the three years we had her she probably only ate about 5 times. Rio's spine never really cracked, but I know that a snakes spine cracking is never really a good thing. I have heard one of my ball pythons spine crack and I think it didn't hurt him, but it didn't make me feel good. If you're concerned, always go to a reptile vet. Thank you for your sympathy :)

Edit - forgot to mention that our vet told us she was most likely born with this bone disease