breast bump with bleeding...

[briony]

I'm 16, and I have woken up the past two days with my right nipple bleeding, and today i discovered a lump right behind the nipple that is sensitive.
What is wrong?

[Cleveland Clinic]

Dear briony, Over the internet without ability to examine you and ask questions it is impossible to say what this is.  It is best to bring this to the attention of your doctor who can check this for you.  

[alarson]

I noticed no one has replied to you yet.  This is something that I think you should see a doctor about and have it looked at.  It is scary to find a lump - but your doctor will be your best help right now.  Make an appointment!  Don't let time pass by and just go.