It is normal. No one really seems to know why the tortoises have them, but many tortoises have these little white circular patterns under the scutes. I think they may be some type of canals (similar to Haversian canals and canaliculae in humans) to nourish growing bone.View attachment 382705I noticed these little patterns or circles on the plastron of my star. Anyone have any idea what it is? Or if it’s normal?
Bill: I was told long, long ago that it was calcium circulating through baby tortoises's shells. I never repeat this because I don't know if it's true. I like your explanation. And it 'sort of' ties into mine.It is normal. No one really seems to know why the tortoises have them, but many tortoises have these little white circular patterns under the scutes. I think they may be some type of canals (similar to Haversian canals and canaliculae in humans) to nourish growing bone.