my rat has a lump on its neck

[Rat Lover]

Does it feel like it is just under her skin, or deeper? Could you call a clinic tomorrow and ask how much it would be for them to just see her for this? Is she eating and pooping normally? Is she behaving normally?

its just under his skin and he act just fine

[Karen]

It may just be a fatty tumor, called a "wen" but it is best to get a vet to check it out, just to be safe.