Many hamsters develop untrustworthy personalities and begin to bite because they have been handled roughly or suddenly disturbed or awakened. Hamsters whose personalities are not well known must always be approached cautiously. A glove or small towel can be used to pick up these hamster, or the animals can be encouraged to crawl into a small container, which is then removed from their enclosure. Unknown hamsters and those known to bite can also be picked up and restrained by grasping a large amount of skin behind the head. As much skin as possible should be grasped between the thumb and index and middle fingers because their skin is so very loose.
Proper housing is a major factor in maintaining healthy hamsters.
Hamsters can be housed within enclosures made of wire, stainless steel, durable plastic or glass. The last 3 materials are preferred because they resist corrosion. Wood and similar materials should not be used to construct enclosures because they are difficult to clean and cannot withstand the destructive gnawing of rodents. Many pet stores sell durable colored plastic enclosures that include attached horizontal and vertical tubes through which the hamster can crawl for exercise. These are suitable enclosures for hamsters.