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Step 1
Check the eyes and nose for any type of discharge. If you see signs of discharge, then most likely your pet mouse has a respiratory infection.
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Step 2
Watch the mouse's behavior. If you see one of your mice acting out of sorts that can also mean that they have a disease. You may see a decreased appetite or lack of activity.
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Step 3
Assume that your mouse has a skin condition if you see it scratching or its skin begins flaking off. These signs indicate that the mouse has mites or lice.
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Step 4
Separate the mouse if you suspect that it has a disease. You don't want the condition to spread to the other mice. Also, practice good hygiene when handling a sick mouse. Wash your hands, wear gloves and clean the cage that houses the sick mouse.
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Step 5
Take your mouse to a vet. If you are concerned about a possible disease in one of your pet mice, then find a vet and ask her advice.








