The bump could be a cancerous tumor. If the bumps get larger, develop black scabs, and your hamster starts to poop blood this theory may be more or less correct. I am truly sorry about your hamster.
You need to get it checked out by a doctor
thats its nipples
My hamster has had a red bump on his foot before. There is a bump because a) another hamster bit it or b) he got his foot poked somewhere. This isn't a sickness, so you don't have to worry. It will heal by itself.
no red bump behind my ear. behind my ear it just sore
If Hamsters somehow happen to get Head Lice the Lice will not live
No butter does not cure a bump on the head, but try spreading it on your toast it tastes great.
what does it mean if you have a bump on your head
Your Shoulder can move downward, and can cause a red bump and swelling. If blood collect around your spine and shoulder is can cause a red bump and discomfort. Or it could be a type of injury
Bump on head
no
bump on head
buddhists say that ... 1.As he was acheving enlightenment his head filled up with knowlege and created a bump 2.is hair was pinned up on top of his head