White Lines on Plastron

[Ashley15]

Hi I was just checking my Russian shell and noticed a ton of white lines all over her Plastron. She has been climbing over her log a lot so I wonder if she scrapped it or if it's the beginning of shell rot or something else.

Any help would be appreciated.

 

[Yvonne G]

It's just stain. Looks like some sort of powder or light dirt in the creases. It should wash away with a gentle scrubbing.