Nosebleeds are common in both, children and adults and involve bleeding from the nostril, nasal cavity, or nasopharynx. In most cases, it occurs only in one nostril, but when there’s heavy bleeding, it can go into the nasopharynx which is the place where both nostrils meet.
Causes and Epidemiology
Sudden and rare nosebleeds are usually harmless. However, if they happen too often, it’s best to visit your doctor.
Here are the most common causes of nosebleeds:
- Allergic rhinitis
- Trauma
- Chemical irritants
- Foreign object in the nose
- Cold air
- High blood pressure
- Deviated nasal septum
- Low platelet count
- Upper respiratory infection
- Injury
- Nose picking
- Large doses of aspirin
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