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Dry air is the most common cause of nosebleeds. Living in a dry climate and using a central heating system can dry out the nasal membranes, which are tissues inside the nose.
This dryness causes crusting inside the nose. Crusting may itch or become irritated. If your nose is scratched or picked, it can bleed.
Taking antihistamines and decongestants for allergies, colds, or sinus problems can also dry out the nasal membranes and cause nosebleeds. Frequent nose blowing is another cause of nosebleeds.
Other common causes of nosebleeds include:
-foreign object stuck in the nose
-chemical irritants
-allergic reaction
-injury to the nose
-repeated sneezing
-picking the nose
-cold air
-upper respiratory infection
-large doses of aspirin
Other causes of nosebleeds include:
-high blood pressure
-bleeding disorders
-blood clotting disorders
-cancer
Most nosebleeds don’t require medical attention. However, you should seek medical attention if your nosebleed lasts longer than 20 minutes, or if it occurs after an injury. This may be a sign of a posterior nosebleed, which is more serious.Injuries that might cause a nosebleed include a fall, a car accident, or a punch in the face. Nosebleeds that occur after an injury may indicate a broken nose, skull fracture, or internal bleeding.
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Everything About Nosebleeds
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