How can I get my hamster to stop pooping everywhere?
Expert Answer
To train a hamster to toilet in one spot: first, buy or make a toilet sized for it with a low entrance, placed in a cage corner away from the nest. Second, when cleaning, leave some bedding with fresh urine in the toilet so the hamster locates it by smell.
Then watch; when it uses the toilet, reward it with a small treat or praise to reinforce the habit. Note training takes time and patience and the hamster may not learn at once – repeat until it forms the habit.
My hamster learned a corner toilet once I put a low dish there with a dab of his own bedding scent and rewarded him for using it, patience did the rest. Not every hamster cooperates, but mine got it after a week of catching him in the act. I'd skip scolding, just relocate accidents to the spot and praise the wins, it's a slow habit, not instant, but a cleaner cage made it worth the effort for both of us.