What causes nosebleeds?

Superficial vessels: 95% of nosebleeds occur from the front of the nose. Blood vessels can be superficial in that area and easily traumatized. This then can lead to bleeding. Bleeding is usually worse when noses are irritated either from an upper respiratory tract infection or allergies. Some people have bleeding disorders which can also make bleeding worse. If nosebleeds are a problem for you you should see an ENT doctor for an evaluation.

Causes: Nose bleed reasons: nasal congestion or nasal dryness, ^ blood pressure, excessive use of decongestants, being at ^ altitude, trauma to nose, nose picking, or blowing the nose hard. Bacterial ; viral infections can ^ risk as well as bleeding disorders. Recurrent nose bleeds may be due to broken vessel in the nose. Alcohol / Cocaine abuse can cause nose bleeds, as can tumors.