My guinea pig has a bump on his arm

[supersmiley0128]

my 3 or 4 year old guinea pig has a small bump on his shoulder. It is kind of hard, and it moves with his skin. He hasn't been out side since last september, since it was just winter in Canada. Does anyone know what it could be or what i should do?

 

[sport_billy]

Welcome to the forum. I would get it checked out at the vets...

 

[twiams]

Probably best idea is to get a vet to check it out, the problem with lumps is theres so many things it could be !
Better to be safe than sorry though (:

 

[Abi_nurse]

I agree, it needs to be seen by a vet. Until you know what it is you cant tell what needs to be done or what it is.

Welcome to the forum by the way.

x.