Dr Phil Kieran: Should we worry about my teen's nosebleeds? 

Anything that irritates the inside of the nose can cause bleeding. The most common of these is direct trauma from itching or picking (which is much more common than most people think, with a study showing that 91% of us do so).

Teen boy wipes his nose with a napkin isolated

My 14-year-old son has started to get sudden nose bleeds, but which stop quickly. There is no apparent cause for them. He is anxious that he might get a bleed while he is out with friends. So far, he has had three bleeds in as many months. Should we be worried?

Nosebleeds in children and teenagers are common, but, thankfully, they are rarely something to worry about.