I am 17 years old and well... I have a very large lump on my areola. It's not one of those little pimple looking ones that are on my nipple, I know those are normal, but this one is about as round as a pencil eraser, and around the lump is very red. It looks as if I have a second niple. Breast cancer runs in my family. I have had this lump for about over a month now, at first it was a lot smaller, but in the past three days it has grown a lot. I can rub my finger around it but if I just like poke it with the tip of my finger it hurts a little. What could it possibly be?