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Red eared slider shell has black creases. Is it shell rot or normal?

Updated On September 23rd, 2025

Pet's info: Reptile | Aquatic Turtle | Female

My red eared slider has black thin layer around every crease of her shell ? But when they mention shell rot it’s white ? I’m so worried

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1 Answer

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Answered By Todd Cecil

Veterinarian

Published on November 5th, 2019

Thanks for reaching out about Shelly and including photos. Black edges around the perimeter of the scutes could be just growth rings, but also possible inflammation (a melanin process) due to nutritional deficiencies, something irritating in the water and even a possible infection. If the problem expands, a veterinary visit is recommended. Review diet and husbandry parameters such as water temperature, basking temperature, UVB exposure and water quality. Good luck.

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