“Bleeding post-rhinoplasty”

Seeking help:

My nose started bleeding exactly six weeks after rhinoplasty. This hadn't happened previously. I didn't hit my nose hard or cause any significant trauma to it. What could cause this bleeding, and should I be concerned? -- Updated on Sep 17, 2009: I had rhinoplasty about two months ago. I broke my nose a few years ago and had a small bump on the side of my nose as a result. My doctor shaved it down during my surgery. It was completely gone and smooth until week six. That's when the bump started to return. It is not as bad as it was before the surgery, however, it is definitely back. What could this be, and will it go away? What could cause a bump to return? Is there anything I can do now?