My nose was broken in a fight. It is now flat on the upper ridge. Can my nose be fixed?

Fixing a nose that was just broken versus one that was injured weeks, months, or years ago are very different things.  If you had your nose injured recently (days), get in immediately to a plastic surgeon or ENT facial plastic surgeon, as the correction now will usually be quick, cheap, and predictable.  If this is not a fresh injury, a secondary rhinoplasty will be needed: not quick, not cheap, and less predictable.

I would suggest you find a plastic
surgeon with extensive nasal surgery experience who is certified by the
American Board of Plastic Surgery and ideally a member of the American Society
for Aesthetic Plastic Surgery (ASAPS) or a facial plastic surgeon (ENT) that you
trust and are comfortable with. You should discuss your concerns with that
surgeon in person.

Robert Singer, MD FACS

La Jolla, California