Nosebleeds often occur in dry or cold conditions, when the lining of the nose becomes dry and cracked, causing bleeding. They are also commonly caused by blowing the nose, fragile blood vessels, or as a result of a common cold or other infection.
Recurrent nosebleeds may sometimes occur as a side effect of certain drugs; rarely, they indicate an underlying disorder, such as high blood pressure, a bleeding disorder, or a tumor of the nasal passages.
The majority of nosebleeds can be treated with simple first aid and pressing both sides of the nose together for 15-20 minutes.
However, a nosebleed that continues after first aid and lasts for more than 20 minutes requires medical attention

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