Baby boy with sore nipple

[FriendofDorothy]

I was bathing my 7 1/2 month old tonight and noticed that his right nipple looks red and it feels like there is a lump underneath it. Has anyone else had this? He is perfectly well otherwise, no temperature or anything else to be concerned about.

I will take him to the GP on Monday but just wondered if it is very unusual.

DS had this with both nipples. My GP said it was a hormonal thing, and completely normal and should just go away by itself. it went away, just as the GP had said, it the time dd was just over a year old.