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My cat's pink gums turned black after moving. Is it serious or stress?

Updated On September 23rd, 2025

Pet's info: Cat | Siamese | Female | spayed | 8 years and 8 months old | 7 lbs

My 8 yo Siamese cat has just experienced a cross continental move. In the past week, (been here 2) her gums in the front of her mouth have gone from a healthy pink to a blackish color. She has had dental plaque but I brush her teeth. There are a lot of new variables in the equation: new food (fish based which she may have a slight allergy to), flea treatment, litter, much colder climate, new stress in a new home. Is this something serious or stress related? There are no behavior changes. Thanks!

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1 Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on September 15th, 2017

Thanks for using Petco Pet Education Center, formerly Petcoach! At least based on the pictures, it just looks like a normal change in the pigmentation of her gums which would not be serious and would not be a reason to be concerned. If at some point you notice any clinical signs affecting her such as decreased appetite or lethargy, have her evaluated. Otherwise, I think that she will be just fine. Good luck!

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