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Such growths may include nasal polyps, tumors, or even cancer of the blood-forming tissues anywhere in the body, which may have nosebleeds as a symptom. Hereditary malformations of the blood vessels.Low levels of platelets in the blood: This may follow a viral infection.Taking blood thinners: "Thin" blood that does not clot right away due to prescribed blood thinners, such as Coumadin, or, sometimes, aspirin.Nasal surgery: This may have created spots of incomplete healing that continue to bleed.īleeding disorders can manifest as a bloody nose.The abnormal airflow is very drying and leads to bleeding of the nasal tissue. Deviated septum: This means that the "wall" of cartilage dividing the left nostril from the right is crooked and possibly misshapen.Foreign body: Young children may push small objects up their noses, which become lodged and cause chronic pain and bleeding.Injury from an accident, fall, or sport.Trauma to the nose in itself can result in bleeding.

Serious: See a physician for more frequent nose bleeds that keep coming back for no reason.Moderately serious: See a physician for a persistent bloody nose.Not serious: Most of the time, a bloody nose is not severe and will stop.The severity of a bloody nose depends on the cause. Heavier bleeding: A heavier gush of red blood may appear from one or both nostrils following a more severe injury, after nasal surgery, or with blood clotting problems (bleeding disorders).Lighter bleeding: A trickle of red blood may appear from one or both nostrils following a mild injury, or after blowing your nose due to a cold.If you're experiencing a bloody nose, it can likely present as: The nose is already somewhat vulnerable to injury, illness, and medication use (or misuse). The nose has an extensive supply of thin, delicate blood vessels needed for your sense of smell.

The cause of a bloody nose will usually be evident because bleeding will follow an injury, nasal surgery, or a lengthy cold. Even though a bloody nose can be unnerving, this condition is not severe most of the time.