What causes nose bleeds ?

I quite often get nose bleeds ranging from just a small amount of blood to really heavy for anything up to half an hour. I don't ever knock my nose or ever subject to heat or anything. I literally can be just walking round town or even sitting at my...

Im 18 and ive never had a nose bleed until a couple weeks ago. I dont do any physical or vigorous activities. I quit drinking and smoking a month ago. I dont know why im all of the sudden dripping blood out of my nose. Can my nose be bleeding because...

I was trying to eat last night and every time i tried my nose would start bleeding. I went to work this morning everything was fine. i get there and my nose starts bleeding again and i'm so light headed that i think i'm going to pass out. I have never...

I get nose bleeds all the time and i always wanted to know what is it from? im 12 years old 80lbs and healthy. I had a total of 6 nose bleeds today.

I got 2 nose bleeds in one week and I'm not sure why... why do we get nose bleeds?

A list of 2-3 common causes, and 2-3 least common causes for severe nose bleeds would be appreciated.

ever since I was 10 I've always had frequent nose bleeds. Even the lightest tap would make my nose bleed. I had my atnoids taken out when I was 16 and I am now 19. What would cause this because I am tired it bleeding with even the slightest tap.

the past2 days ive had nose bleeds ive neverhad one before i just wondered what causes them

hi..to all...i have frequent nose bleeds but its minor...what are the causes of this illness? thanks to may advice...