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Page: Etiology
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The cause of nosebleeds can generally be divided into two categories, local and systemic factors.
Local factors
* Anatomic deformities
* Chemical inhalant
* Inflammatory reaction (eg. acute respiratory tract infections, chronic sinusitis, allergic rhinitis and environmental irritants)
* Foreign bodies
* Intranasal tumors (Nasopharyngeal carcinoma in adult, and nasopharyngeal angiofibroma in adolescent males)
* Nasal prong O2
* Nasal spray
* Surgery (such as septoplasty and endoscopic sinus surgery)
* Trauma
Systemic factors
* Drugs - aspirin, warfarin, advil, clopidogrel, desmopressin and others
* Alcohol (due to vasodilation)
* Allergies
* Blood dyscrasias
* Heart failure (due to an increase in venous pressure)
* Hematological malignancy
* Hypertension
* Infectious diseases
* Malnutrition (especially anemia)
* Narcotics
* Vascular disorders
* Nose picking (especially in children)
* Muscle tightness as caused by scoliosis (the tightened muscles cause blood vessels to become constricted, resulting in nosebleeds from the same side as the tightened muscles).
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Important notice:
The content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other
qualified health provider with any questions you may have regarding a medical condition.
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