Why does my pet mouse breathe heavy and flinch while sleeping?

Question

I have two pet mice Urie (White) and Ogie (Black). Ogie is fine but Urie when he sleeps he breaths heavy and flinch a little. I don't know if it's a problem or not. Just wanted to see if I need to do any thing to help him. Thank you. Pet's info: Small Animal | Unknown - Small Animal | Male | 0.45 lbs

Penelope Graben, DVM · Accepted Answer

Hello, Many animals can be seen visibly "dreaming", or moving in their sleep. If the episodes are associated with uncontrolled urination or defecation, confusion or change in behavior, then I would be concerned about possible seizure activity and recommend a vet check. If you don't notice any of those things paired with the episodes, and Urie is otherwise bright, playful, eating well, and not showing any changes in respiration, I would be more inclined to call it normal sleep activity. Upper respiratory disease is very common in mice, so you are not wrong to be concerned. If Urie begins to sneeze, wheeze, experience nasal discharge, lethargy, or unwillingness to eat, then I would recommend a vet check for him. Many mice carry the bacteria for upper respiratory infections naturally and it can flare up when the immune system is compromised by other disease or stress. These secondary bacterial infection "flare ups" require a course of antibiotics for treatment. I hope this is helpful! Thanks for using Petco Pet Education Center, formerly Petcoach!

Why does my pet mouse breathe heavy and flinch while sleeping?

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