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Pet Rats/Patches, My rat.


Hi Dr Ducommun, I have a pet rat called Patches. I was wondering as Patches currently has a tumor under her right arm if there is anything or anyone I could bring her to. The problem is that I live in London, United Kingdom.

Is there anything you can do to help me?
Thank you, Alan.

Hi Alan,
Patches probably has a benign mammary tumor, which can be surgically removed. You'll find a list of vets on my website at on the Rat Info page, although I don't think there are too many in the UK listed. You'll also find an article about how to find a good rat vet.

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Debbie Ducommun


I can answer any questions about pet rats, but you will probably be able find answers to simple questions more quickly on my website at If you have a life-threatening emergency you can try calling me at 530-899-0605. I am not usually on the computer on the weekend.


I have been "The Rat Lady" since 1985 and am recognized as one of the world's experts on pet rats. I have 3 published books and already answer lots of questions about rats daily.

President of Rat Assistance & Teaching Society

I am a monthly columnist for Pet Business magazine, and my writing has appeared in other magazines. I have 3 published books.

BA in Animal Behavior

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