Hi , I have had milo for a few months now and have just noticed that he was hissing while using the bathroom. I am confused because my other boy Cozmo doesn't do the same . Is this normal? Do other Gliders do this?

That may be the sign of a UTI.

Yeah you should see the vet to possibly get meds for him.

Give him some cranberry juice (100%, no sugar added; as natural as possible) in the meantime. Sometimes that already helps my glider. But take him to the vet - it can be a UTI or inflammation of the bladder, in which case he would need antibiotics or an anti-inflammatory, respectively.

ok thanks for the info.