What do two round dark spots on each of your hamster's hips mean?

Answer 1

== == They are scent glands and all hamsters have two of them, one above each hip (except some dwarf hamsters which have a third one underneath). They are usually more obvious on a male hamster and when they get older they can sometimes get quite hairless and shiny, especially when they over groom them. You will occasionally see your hamster rubbing his/her hip spots around their cage to mark their territory. This is nothing to worry about as this means your hamster is sexually mature and in good breeding condition.