Tortoise shell odd white lines & Circles

[EmilyBarugh]

My Hermann tortoise Cecil is 2 years old and has started developing these odd white squiggles and lines! any ideas what they are/what causes them?

 

[Robertchrisroph]

This is normal. I have read this here. I dont know what the cause, the pros can say that. But very normal I've seen

 

[Tom]

Totally normal. Do a search for "Squiggly Lines" to read more about it.

 

[Falcon70]

Perfectly normal! You have a very nice tortoise