I recently realized one of my rabbits seems to have audible tummy gurgles pretty often. I was worried about it, as my other rabbit only has it when he is visibly gassy and uncomfortable. For the female (gurgly-one), she has it, but eats so much hay, drinks a lot of water, poops plenty, sprints plenty, etc.. Since all the health behaviors are there and in good quality, I have decided perhaps it’s just a unique fixture of her that her gut seems louder. Notably, her body is very loud when she drinks water, so unsure if anatomically perhaps something makes things naturally more audible from her. I will say I do plan on getting her checked though because she breaths very rapidly and I have concerns regarding her lungs/nose, but I do believe these are separate concerns from her GI tract, which seems to function normally despite the gurgle sounds.
If he is not showing signs of discomfort, the gas sounds could potentially be completely fine (based on my experience with my female rabbit). If anything, it’s telling you that there is movement happening in the gut. A vet assessment isn’t a bad idea, because perhaps there is something underlying that is causing it, but not problematic enough to affect his health behaviors at this point. Early detection is the best thing for rabbits.
The answers provided in this discussion are for general guideline purposes only. The information is not intended to diagnose or treat your pet. Seek the advice of your veterinarian or a qualified behaviorist.