Causes and Diagnoses
Causes and Diagnoses of Frequent Nosebleeds
The delicate skin inside the nose is supplied by many small blood vessels, which can bleed when there’s even a mild injury.
Certain conditions may raise your risk of getting a nosebleed, including:
- Dry air, especially during winter
- Colds and allergies
- Acute sinusitis
- Foreign object in the nose
- Medications, including:
- Blood thinners
- Oxygen supplementation
- Illegal drugs that are inhaled
- Picking the nose or blowing vigorously
Frequent nosebleeds may be caused by:
- Nasal deformity
- Nasal polyps or tumors
- A blood-clotting disorder
- Osler-Weber-Rendu syndrome, an inherited disease characterized by abnormal nasal blood vessels
Diagnosing frequent nosebleeds
Your physician will begin by taking a full history of your nosebleed occurrences, medical conditions and what medications you are taking. Diagnostic tests may also include:
- Nasal endoscopy: An endoscope (a thin, flexible tube with a light and camera on the end) is inserted through your nostrils and progressed through your nasal passages and sinuses to determine if you have polyps or tumors.
- Blood tests: A sample of your blood may be taken for laboratory tests.
- Allergy testing: If you have other signs of chronic rhinitis or sinusitis, you may be referred to an allergist for further testing.