How does inflammation cause epistaxis (nosebleed)?

Updated: May 08, 2020
  • Author: Quoc A Nguyen, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Bacterial, viral, and allergic rhinosinusitis causes mucosal inflammation and may lead to epistaxis. Bleeding in these cases is usually minor and frequently manifests as blood-streaked nasal discharge.

Granulomatosis diseases such as sarcoidosis, Wegener granulomatosis, tuberculosis, syphilis, and rhinoscleroma often lead to crusting and friable mucosa and may be a cause of recurrent epistaxis.

Young infants with gastroesophageal reflux into the nose may have epistaxis secondary to inflammation.

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