Font Size
A
A
A
2
...

Nosebleeds (cont.)

Nosebleed Causes

Most nosebleeds do not have an easily identifiable cause. However, trauma to the nose is a very common cause of nosebleeds. Nosebleeds can be caused by trauma to the outside of the nose from a blow to the face, or trauma to the inside of the nose from nose picking. Other conditions that predispose a person to nosebleeds include:

  • exposure to warm, dry air for prolonged periods of time,
  • nasal and sinus infections,
  • allergic rhinitis,
  • nasal foreign body (object stuck in the nose),
  • vigorous nose blowing,
  • nasal surgery,
  • deviated or perforated nasal septum, and
  • cocaine use.

Less commonly, an underlying disease process or taking certain medications may cause a nosebleed or make it more difficult to control.

  • Inability of the blood to clot is most often due to blood-thinning medications such as warfarin (Coumadin), clopidogrel bisulfate (Plavix), nonsteroidal anti-inflammatory drugs (NSAIDs), or aspirin.
  • Topical nasal medications, such as corticosteroids and antihistamines, may sometimes lead to nosebleeds.
  • Liver disease, chronic alcohol abuse, kidney disease, platelet disorders, and inherited blood clotting disorders can also interfere with blood clotting and predispose to nosebleeds.
  • Vascular malformations in the nose and nasal tumors are rare causes of nosebleeds.
  • High blood pressure may contribute to bleeding, but is rarely the sole reason for a nosebleed. It is often the anxiety associated with the nosebleed that leads to the elevation in blood pressure.
Medically Reviewed by a Doctor on 5/9/2014

Must Read Articles Related to Nosebleeds

Broken Nose
Broken Nose A broken nose (nasal fracture) is any crack or fracture in the bony portion of the nose. Causes of a broken nose include fights, sports injuries, motor vehicle ...learn more >>
Facial Fracture
Facial Fracture A fracture is a broken bone. Facial fracture refers to any injury that results in a broken bone or bones of the face. Symptoms of a facial fracture depend on wh...learn more >>

Patient Comments & Reviews

The eMedicineHealth doctors ask about Nosebleed (Epistaxis):

Nosebleed - Causes

Was the cause of your nosebleed ever diagnosed?

Nosebleed - Length Symptoms Lasted

How long did the symptoms of your nosebleed last? Was there anything in particular that helped with pain/symptom relief?




Read What Your Physician is Reading on Medscape

Epistaxis »

Epistaxis, or bleeding from the nose, is common in its frequency and varied in its manifestation.

Read More on Medscape Reference »


Medical Dictionary