How common are idiopathic cases of epistaxis (nosebleed)?

Updated: May 08, 2020
  • Author: Quoc A Nguyen, MD; Chief Editor: Arlen D Meyers, MD, MBA  more...
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Answer

The cause of epistaxis is not always readily identifiable. Approximately 10% of patients with epistaxis have no identifiable causes even after a thorough evaluation. [15]


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