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Why is my turtle's shell soft and has a spot on its head? Contagious?

Updated On September 23rd, 2025

My turtle alex has something on her head and it has made her shell get soft I'm not sure what to do or if it I contagious to my other turtle Leo.

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Answered By Dr Stafford, BVetMed, MRCVS

Veterinarian

Published on August 6th, 2017

Unfortunately it looks like Alex has a bad case of wet shell rot also known as SCUD. As this is quite severe I would take him to a vet with experience of chelonians asap as untreated it can progress into blood poisoning. If possible it woukd be best to isolate Alex as it is usually due to an infection of bacteria or fungi.

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