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Mice/help please


i have a mouse that we got the pet store about a month a go (i got 2 of them a male and a female) the female mouse is fine but the male his eyes are closed now with a yellow/white infection looking crust/ liquid. whats wrong with him and how do i fix it? she doesnt have it and none of the mice i got sense then have it can they catch it??

Hi Candice,

It could be any number of things, actually, but without knowing exactly what caused the crusty eye I cannot tell you if it is contagious.  The best thing to do would be to visit a vet in your area who is familiar with pocket pets like mice and can see the eye in person.

Some things that cause crusty eyes include sensitivities to bedding (either the type or the freshness), scratches, infections, irritation from dustiness, and more.  You can help to dissolve the crusties away by dipping a corner of a clean gauze pad in a cup of warm, slightly saline water (add just a tiny amount of salt) and gently dabbing the eye with it.  Then wait a few minutes and use a new gauze pad dipped in the same water to clean up the eye a little.  If you can't or he won't let you, that's okay, just dampen the eye area (try not to get the rest of the fur wet or he could chill) and let him clean it away himself.  You can do this one to do times a day, but stop if it becomes reddened or irritated.  Most importantly, try to identify what caused the oozing and crusties - does he have any injuries that you can see in that area?  Is the bedding fresh (stick your whole head in when smelling it - boys stink up bedding faster than girls - I typically change it for boys living alone once every 4-5 days), not dusty, and not pine?  Is there anything sharp in the cage, or anyone else in the cage he could have been fighting with?  Does he have any injuries on the rest of his body that might give you a clue?  Is he still eating and drinking normally?

If you can find a vet to look at it they can give you medication if you need it and can stop the infection from getting worse and potentially damaging the eye.  They may also provide you with saline drops to help keep the eye moist and help draw out fluid as it heals.

Hopefully this helps, but let me know if you have any other questions!


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I can answer questions regarding mice as pets, mouse behavior, color and coat genetics, breeding techniques, and general health questions. I can help with caging and setup, nutrition, social issues, and what to do in most mouse emergencies (such as unplanned litters, injuries, fighting, etc.). I can also assist with questions pertaining to orphaned mouse pups, weaning litters, and questions of mating and birthing. I cannot answer questions about exotic or wild varieties of mice such as spiny or pygmy mice. *****FOR EMERGENCIES, anything requiring immediate medical intervention, PLEASE take your mouse to a professional veterinarian or wildlife rehabilitator who works with mice as soon as possible! IMPORTANT RESOURCES: Raising Orphaned Mice: Orphaned Mice Videos: Natasha's Your First Mouse: General Mouse Help: Mouse Info and Exotic Breeds:


I have enjoyed the companionship of mice nonstop since 2004, and spent a year caring for them in a lab where I learned a great deal about their breeding, social needs, and health. I spent a few years breeding them, specifically working with albinos, marked mice, angora mice, and satins. My education never stopped - I am learning something new every day from current and well-established research thanks to the wonderful folks at the Jackson Laboratory, as well as from my wonderful mousey friends online. I also love learning from my terrific questioners here on AllExperts - you folks keep my passion for these amazing animals alive and well!

East Coast Mouse Association - expired, American Fancy Rat and Mouse Association - expired

Partial University for a B.S. in Microbiology, Partial University for a 2-year degree in Veterinary Technology (RVT cert), C.E. classes in pathogens, aseptic technique, genetics, and applications

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