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My pet mouse has a tumor but is active and happy. What can I do?

Updated on September 23rd, 2025

Pet's info: Small Animal | Unknown - Small Animal | Female | unspayed | 1 year old

My pet mouse has had a tumor for about 4 months, and it's grown very large, but she still gets around fine and doesn't appear to be in pain. She's young, only 1 year old. Is there anything I can do for her? Having a surgery done on her is too risky at this point, but I don't want to have her euthanized either, as she's still active and happy. The only thing she has trouble with is fitting through small holes, but otherwise she gets around great.

1 Answer

Most Helpful Answer

Andrea M. Brodie, DVM

Answered By Andrea M. Brodie, DVM

Veterinarian

Published on March 24th, 2018

I think as long as Snowball eats and drinks and appears happy and not in pain, you can just monitor her and make sure she stays happy. Make the holes bigger or remove the small holes, so she does not get stuck. Listen to your mouse. She will tell you when it is time to let her go. Also should the tumor start to ulcerate or bleed, she will be prone to infections, and that may also be time to let go. But until then you can spoil her with treats and pets and a good life.
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