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Is My Mouse Sick?

Know the signs to look for in a sick mouse.

By Audrey Pavia
Posted: March 31, 2008, 5 a.m. EDT

Mice are active, alert animals. When healthy, their eyes and noses are free of discharge, their coats are sleek and shiny, and their droppings are firm and elongated.

Unhealthy mice may have a dull coat, eye or nasal discharge or diarrhea. They can also be lethargic, aggressive or sleep almost constantly.

If you see any of these signs in your mouse, take it to a small mammal exotics veterinarian immediately.

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Is My Mouse Sick?

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Reader Comments
i think my mouse is sick, because she wont stop sleeping, wherever you put her, she falls asleeep, and she is not old either.... she also has two distinct lumps on each side, but has NEVER been in contact with males. what can i do?
jennifer, geneva
Posted: 8/3/2013 9:54:02 AM
We have seen some mice in our house and the babies I've seen are wet my mom said they felt wet. And it's not wet tail thing their whole body is wet and one I have seen has bulgy eyes. Any ideas what the wetness could be :/
Julia, Pittsfield, MA
Posted: 4/18/2012 3:40:22 PM
I am really worried, my mouse has been laying on top of her house, sleeping most of the time, and hardly doing anything active. Yes, she is alive, but i am really worried!!! please help me and tell me what i should do!! :'(
krysta, wellington, FL
Posted: 8/29/2011 3:35:53 PM
my fancy mouse, 20 months old, has been hanging her head low and panting. she sits on her wheel, and her head is hanging down below. she recently lost her partner, and I am so worried about her. I fear she has a broken heart.
ann, atlanta, GA
Posted: 8/22/2008 2:09:24 PM
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