Why do nosebleeds start?

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.

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!

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Why do nosebleeds start? 

Smash Boom Best is a debate show for kids and families from the makers of the award-winning podcast, Brains On! Every episode takes two cool things, smashes them together and lets you decide which is best.


Smash Boom Best

A history show for the whole family! Every episode explores the origin of just one thing — like sandwiches, video games, clocks and more — while teaching listeners to think critically about history.


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Our mission is to encourage kids’ and curious adults’ natural curiosity and wonder using science and history…but there’s no age limit on curiosity, and episodes of Brains On can be enjoyed by anyone.


Why do nosebleeds start?

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