Nosebleed

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A nosebleed, also known medically as epistaxis, is bleeding from the nasal cavity caused by rupture of small blood vessels in the nasal mucosa. Most cases are minor and stop spontaneously with simple first-aid or medical care. In some cases, blood may flow down into the stomach, and cause nausea and vomiting. In more severe cases, blood may come out of both nostrils. In rare cases, bleeding may be so significant that low blood pressure occurs. Blood may also be forced to flow up and through the nasolacrimal duct and out of the eye, producing bloody tears. Risk factors include trauma, especially from nosepicking, blood thinners, high blood pressure, alcoholism, seasonal allergies, dry weather, and inhaled corticosteroids. There are two types: anterior, which is more common; and posterior, which is less common, but more serious. Anterior nosebleeds generally occur from Kiesselbach's plexus while posterior bleeds generally occur from the sphenopalatine artery or Woodruff's plexus. The diagnosis...

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