Sick mouse

Sick mouse

Losing Hair: Could be old age, or it could have rubbed its fur against something sharp. If it’s scratching the spots, then it is most likely mites. Call your nearest small animal vet, and they will prescribe some mite medicine. Update: It could also be ringworm: a fungus that grows on the fur. It is usually seen as patches of hair that are missing.

Lumps: These are most likely cancerous. Take your mouse to the vet, and have it checked out. A checkup usually costs around 18 dollars.

Broken bones: If your mouse is limping around, and has a misplaced look to the bone, it is probably broken, it will heal on its own in a few weeks. Take out any tubes, ladders, or wheels preventing any further injuries to the bone.

Obesity: The simplest way to cure this is to put your mouse on a diet, and be sure they have ladders or wheels to exercise on. Give your mouse less seed mix, and pick out the sunflower seeds. Don’t feed it fatty foods like cheese, etc. Fawn colored mice(orange) are almost always obese. Wet Fur: Your mouse could be sweating. It could be too hot in the room, so turn on a fan, or turn the air cooler. Also, remove any cotton/flannel bedding that could be overheating them.

First Aid: The most important thing to do is give your mouse fluids to prevent dehydration, which can occur very quickly. A dropper or small syringe(no needle) will do the trick. Keep your mouse warm! Give it some flannel or cotton nesting materials. Injuries: Small wounds can be gently flushed with warm water and a MILD!! antiseptic, but if it is a major injury: Call the vet!

Abscesses: Since fighting is very common, the cuts that the mice get, can easily become infected. Clean them up with antibiotics. Respiratory Disease: The symptoms include : sneezing, red and watery eyes, and labored breathing. It can be caused by poor ventilation, strong scents, dirty cage bedding, or a dirty floor, where the ammonia from the urine is held.


  1. A on July 16 at 9:37 am

    Losing hair can also be due to barbering behavior if you have (as most people do) several mice in the same cage. It’s a dominance thing. There are studies showing that if you rotate toys in the cage every two weeks, keeping them busy, it can be reduce, but once this behavior is learned it’s practically impossible to make them forget it.

  2. Kayla on April 25 at 8:17 pm

    My mouse skrybbl3s recently started seeming difforent to me. She walks as if she is constantly dizzy and easily looses balance she often rolls herself across the cage to avoid walking or falling over. It started on april 23rd. I had originaly though that her leg may be broken so I removed the wheel. I have cleaned her cage and given her fresh water everyday. Im just hoping to get an anwser as to why she has such strange behavior. If you ca help me in any way at all please e-mail me at

  3. Mhyrianna Root on March 2 at 5:39 pm

    1 mouse found dead in cage…had diarreah and was sluggish. 2nd mouse seemed fine. 2-days later, 2nd mouse squinting eyes, tired and doesn’t want to be held. Please advise. Bedding all cleaned out after 1st mouse died.

  4. Racqueal on September 30 at 4:35 pm

    My mouse has started limping I am. Very scared because I recently got him his name is peanut

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