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Nosebleed

Definition

  • Bleeding from 1 or both nostrils
  • Not caused by an injury

Causes of Nosebleeds

Nosebleeds are common because of the rich blood supply of the nose. Common causes include:

  • Spontaneous Nosebleed. Most nosebleeds start up without a known cause.
  • Rubbing or picking the nose is the most common known cause. It's hard to not touch or rub the nose.
  • Blowing the nose too hard can cause a nosebleed.
  • Suctioning the nose can sometimes cause bleeding. This can happen if the suction tip is put in too far.
  • Sinus Infections. The main symptoms are lots of dry snot and a blocked nose. This leads to extra nose blowing and picking. The sinus infection is more often viral than bacterial.
  • Nose Allergies. The main symptom is a very itchy nose. This leads to extra rubbing and blowing.
  • Dry Air. Dryness of the nasal lining makes it more likely to bleed. In the winter, forced air heating often can dry out the nose.
  • Allergy Medicines. These help the nasal symptoms, but also dry out the nose.
  • Ibuprofen and Aspirin. These medicines increase the bleeding tendency. Aspirin is not used in children.
  • Bleeding Disorder (Serious). This means the blood platelets or clotting factors are missing or not working right. A bleeding disorder should be suspected if the nosebleed can't be stopped. Excessive bleeding from the gums or with minor cuts is also a clue. Bleeding disorders are a rare cause of frequent nosebleeds.

Barton Schmitt MD, FAAP
Disclaimer: this health information is for educational purposes only. You, the reader, assume full responsibility for how you choose to use it.
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