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My red-eared slider has a grey patch on its neck. Should I worry?

Updated on September 23rd, 2025

Hello, our 15-16 year old red-eared slider turtle (not sure if female or male but we think female) recently developed a discoloured greyish patch on its neck (in photos). We are concerned about this. This patch was developed in the last 7 days when she was left at a friends house, together with another red-eared slider who is 14 years old (we think female too). They were left in a fairly small tub together for the 7 days (much smaller than their usual home tank). Do we need to worry about this?

1 Answer

Most Helpful Answer

Angel Alvarado, LVT

Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on May 27th, 2018

It may be local infection or irritation. Female sliders can be territorial, so injury is also a possibility.
If Jenny is behaving normally, you can monitor the spot at home. Maintain pristine water conditions. You can gently cleanse the area daily using a diluted betadine or chlorhexidine (Hibiclens) solution followed by a 1-2 hour dry dock. If the spot doesn't clear up, have her examined by your veterinarian or a vet experienced in treating reptiles.
Yes, Jenny is female. Short nails on the front limbs and the thin tail are indicative of a female slider.
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