So the other day i noticed a weird looking growth under my armpit. It is kind of hard to describe but it is very small, i would say the size of a small pimple but i know it isn't a pimple. It sticks out like a little stem and is round on the top. I posted it in this section because i was wondering if it could be some kind of tumor? I tried to scratch it off (i know a bad idea) but it wasn't going anywhere. The growth does not seem like it continues on underneath the skin. I know anythings possible but it just seems kind of rare for a 21 year old healthy male to get a tumor in that area but i know its possible. I do not know if this is serious or not but i will probably end up going to the Dr. tomorrow. Anyone have any ideas of what it could be?