Hmm.. Kylie has one in her right breast as well. She used to have one in both, but they eventually got smaller and the one on the left side is gone. My mom said it's normal when I asked about it the other day, but I thought it would have been gone by now.
I've never heard of that before. But then, I'm not a doctor. Just to be on the safe side....I'd drop her by the pediatrician to be sure
I remember reading that this is completely normal in baby girls - it has something to do with extra hormones. It should go away over time - not sure when though.
I agree that it's nothing to be concerned over right now. But if it's still bothering you, just give her ped a call and ask about it.
K-bug had a hard lump under her nipple when she was born one side went away before the other side and there both gone now.
If it's bothering or worrying you then contact her ped.