Podcast:Moment of Um Published On: Mon Jul 08 2024 Description: A nosebleed is just what it sounds like: it’s when blood comes out of your nose. Lots of people get nosebleeds, but what causes them? We asked pediatrician Emma Gerstenzang to help us find the answer.Got a scent-sational question? Send it to us at BrainsOn.org/contact and we promise we won’t turn our noses up at it!