If you own a pet hamster you should know that they are cute and very smart, however they may not be as gentle and cuddly as other pets. In fact it's common for pet hamsters to bite their owners. However if you take a few simple precautions then you may spare yourself a nip on the hand once in awhile. If you feel like you know your hamster's teeth better than the rest of it, you may not be handling your pet correctly.
Hamsters bite people either because they are scared or because their owner's hand smells like food.
So don't hold your hamster after eating, he might greet you with a quick bite. Before you try and handle your hamster, let it become familiar with your hand. Put your hand in the hamster's cage and hold it steady. Let the hamster sniff you over and feel comfortable with you. Then gently pet its back.