The purpose of the nose is to warm and humidify the air that we breathe in. The nose is lined with many blood vessels that lie close to the surface where they can be injured and bleed. Once a vessel starts to bleed, the bleeding tends to recur since the clot or scab is easily dislodged. Nosebleeds, called epistaxis, can be messy and even scary, but often look worse than they are. Many can be treated at home, but some do require medical care.
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