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16 Causes of a Nosebleed

Most people have had a nosebleed at some stage of their lives and they’ve probably wondered how so much blood can come from such a small place. The reason is that there are literally hundreds of small blood vessels just under the surface of the lining of the nose and these are easily broken, resulting in a nosebleed. Nose bleeds can be divided into two categories: anterior nosebleeds, where the blood comes from the vessels in the wall between the nostrils and posterior nosebleeds, where the bleeding occurs higher up in the nose where the artery branches to supply each nostril. Most nosebleeds only last a few minutes and are not serious. However, if the bleeding persists for more than an hour, it may be advisable to seek medical attention.

1. Blowing Your Nose Repeatedly and Hard

Why It Happens: Colds and flu result in a runny nose and the repeated blowing can damage the blood vessels in the lining of the nose and cause nosebleeds.
Additional Info: The use of nasal decongestants, often used when suffering from a cold or flu, can dry the membranes of the nose and aggravate the problem.
What To Do: If you do have a cold or flu, avoid blowing you nose hard and too often. Try dabbing it more frequently rather than blowing it. If you are using decongestant medication, try drinking lots of fluids and using a humidifier to prevent the nasal membranes drying out.