What is this on my cat?

[sillylilkitten]

They feel odd, but they dont feel like lumps. What are they? He has two on his upper half and four on his lower half as far as Im aware?

Should I be concerned?

 

[Furballsmom]

Hi, I think those are little nipples, boy cats have them too.

 

[verna davies]

Yes, nipples nothing to worry about.