Nosebleeds, also known as epistaxis, occur when small blood vessels inside the nasal passages rupture, and while they are common, recurrent or severe bleeding may require evaluation by an ENT specialist.
What Causes a Nosebleed?
Most nosebleeds are in the front part of the nose and start on the nasal septum, the wall that separates the two sides of the nose. The septum contains blood vessels that can be easily damaged. Irritation from blowing the nose or scraping with the edge of a sharp fingernail is enough to tear the vessels and cause a nosebleed. Anterior nosebleeds are also common in dry climates, or during winter months when dry, heated indoor air dehydrates the nasal membranes and makes the blood vessels more likely to rupture.
Causes of recurring or frequent nosebleeds may include:
- Allergies, infections, or dryness that cause itching and lead to picking the nose
- Vigorous nose blowing that ruptures superficial blood vessels
- Problems with bleeding caused by genetic or inherited clotting disorders (e.g., hemophilia or von Willebrand’s disease)
- Medications that prevent blood clotting (e.g., anticoagulants like coumadin/warfarin, XARELTO®, or anti-inflammatory drugs like ibuprofen or aspirin)
- Fractures of the nose or the base of the skull (a nosebleed occurring after a head injury should raise suspicion of serious concern)
- Hereditary hemorrhagic telangiectasia, a disorder involving birthmark-like blood vessel growths inside the nose
- Tumors, both malignant (cancerous) and nonmalignant (benign), must be considered, particularly in older patients or smokers




