Causes of nosebleeds include trauma to the outside or inside of the nose and irritation from a cold, according to WebMD. Dry air and diseases such as acute sinusitis also cause nosebleeds. Other less likely causes includ... More »

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One of the most common causes of nosebleeds in adults is dry air, as nasal passages are more susceptible to bleeding and infections as they dry out, according to Mayo Clinic. Trauma to the nose is another common cause, s... More »

www.reference.com Health Pain & Symptoms

Causes of sudden nosebleeds in adults include trauma to the nose, picking at the nose or irritation from a cold, according to WebMD. It is also possible to get a sudden nose bleed due to the development of a disease. More »

Causes of sudden nosebleeds in adults include trauma to the nose, picking at the nose or irritation from a cold, according to WebMD. It is also possible to get a sudden nose bleed due to the development of a disease. More »

Common causes of nosebleeds include nasal irritation from a cold virus, external trauma to the nose, and living in dry climates, according to WebMD. In rare cases, nosebleeds can signify underlying medical conditions suc... More »

Common causes of severe nosebleeds include the inability of blood to clot or a posterior nosebleed that involves an artery at the back of the nose, explains WebMD. Trauma to the nose, medications, trauma inside the nose ... More »

Common causes of sudden nosebleeds in the elderly include damage to an artery in the back of the nose, a blow to the face or irritation from a cold, according to WebMD. Sometimes clotting problems caused by blood-thinnin... More »