Nosebleed refers to blood flowing from the nose or nasal passage. There are two types of nosebleeds:

  • Anterior nosebleed—Blood comes from the front of the nose. It usually flows from the semi-rigid walls that separate the two nostrils. This is the most common type of nosebleed.
  • Posterior nosebleed—Bleeding starts deep within the nose. This is often more severe and difficult to treat than an anterior nosebleed.

The Nasal Passage
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Nosebleeds may be caused by:

  • Irritating or breaking the lining of the nose
  • Injuring the nasal tissue, which occurs more easily when nasal structure is not normal, or when the passages are inflamed due to a cold or allergies
  • Very dry nasal tissue
  • Picking or bumping the nose
  • Forcefully blowing or rubbing the nose
  • Having clot from a previous nosebleed becoming disturbed or dislodged
  • Placing a foreign object in the nose
  • Having a tumor in the nose and/or sinuses