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What causes nosebleeds?

Because there are many fragile blood vessels lining the nasal membrane, the nose is susceptible to bleeding. Some of the more common causes of a simple nosebleed in healthy people include: trauma or injury; hot, dry air passing across the nasal membranes; nose-picking, and; allergies, colds or sinus problems.

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Author: Karen McCloskey BHSc
First answered: 23 Sep 2014
Last reviewed: 19 May 2018
Rating: 4.2 out of 5
Votes: 1384 (Click smiley face below to rate)
Category: Rectal bleeding (blood in stools)

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