Vibrating (Purring?)

[HammyHagar]

Here's another interesting comment from another pet forum:

"I know why hamsters are prone to vibrate, and it is NOT diabetes.

It is a form of "purring" and a sign of pleasure and contentment. It is a GOOD thing when a hamster vibrates. Mine does it only when I let him crawl around free and especially when he meets new people.

It is a low frequency vocalization under 20 Hz, so we can't really hear it but we feel it instead."

[flix]

Aw I really hope that's true, that's so sweet if it is!

[Erin Loves Dwarf Hamsters]

Thistle & Pippy will 'vibrate' if they come into contact between cage bars but this is usually a sign of 'excited fear'/'fight or flight' with them. Its almost as if you can feel the adrenalin rushing through their tiny bodies :L

[tomsk222]

When I pick up my Syrian hamster, she vibrates. I don't think she is scared because she seems very relaxed.