How to clean a guinea pig's dirty belly from pee without stress?
There are many guinea pigs that will urinate (pee) and defecate (poop) where they sleep. I didn't see that you mentioned if there was a particular part of the cage that he goes to the bathroom in (such as inside his hide house, or near his hay pile, etc.) - if there is a common area that seems to be the problem, you can try keeping it clean in those areas to try to help Churchill keep himself cleaner.
There are also some guinea pigs that don't keep themselves very clean with grooming on their own - as you mentioned, it can be stressful sometimes for them to get bathed, and starting with a wet cloth is a great idea. Make sure it is soft, does not have any threads or holes that will catch his feet or nails, and that the water is warm (but not too hot).
Lastly, if you notice any changes in eating or drinking behaviors, or excessive urination or abnormal colors to the urine, I would recommend taking Churchill into a veterinarian, as guinea pigs can get urinary stones that can make them pee frequently and it often ends up on their bellies.
Updated on September 23rd, 2025