It's nothing but puberty. I had it when I was 12-13 on my right. And then again when I was 14 on both. It's all just growing up, if it didn't happen sometime during puberty you're probably not growing.
But if it starts hurting and swelling up I'd go to the doctors.
It will go away unless it gets to the size of your wrist than you will need to go have surgery to get it taken out. but rest assured I have many friends who have lumps under thier nipple even I do but only one needed surgery but his was two times a wrist.
i have aone it hurts like hell!!!
dude that made me feel a lot better. im 15 and behind my nipple is swollen and it hurts but after i saw this i talked to my dad and he said that its perfectly normal
Hi im 13 i have it on my left nipple and its just a change of hormones. dont worry :)
My doctor said that nipple rocks are indicate a high probability of growing full sized breasts by the age of 18.
yes it means your growing boobs
im 15 i have the same thing in both boobs
i went to the doctor and he said that its normal for boys to have this as its the hormones messing with ur tits
he also said itr was so commen that at least 2 out of 10 of my friends had it
a few months later one of my friends said he was going to the doctor because he thought he had breast cancer... he was wrong as he has the same thing as me XD
its seriously nothing to worry about and should go in ur late teens
also forgot to say my dad said he had it when he was my age and he said it went away after awile so it might be genetic