#nipple

Hello! Was inspecting Sponge’s tummy today and saw this third patch above his nipple. It isn’t irritated or sore, he didn’t seem to react when I was prodding at it. Not sure if this is something to worry about, someone’s insight would be appreciated!

Hi guys! today i did my weekly check on my guinea pigs,and i found out that one of the 2 has yellow small buttons around his nipple , its not touching the plump, i am really scared about my guinea pig health, if some one has any idea of whats happeninf can you please tell me , thx