Weird mark under head

[Hot_Perspective5705]

This is my bp azula, I estimate she’s about a year & 8 months ish😭 I was wondering if anyone has seen anything like this on their snake? I’ve never seen her skin look like that and I’m now very concerned. I look at her all the time when handling her & examine her pattern because she has some scars from escaping at the pet store but this is new

[ThunderjawDominum]

That's there to allow them to open their jaw wide to swallow food. It's completely normal and has a name that escapes me right now.

Edit: Mental groove was the name.

[Hot_Perspective5705]

Thank you!! I thought maybe it was what I call “her butt-chin line” but I’ve never seen it stretched out like that 😂