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What are the causes of nosebleeds?​

Sagot :

Answer:

Nosebleeds occur when the moist inner lining of the nose is irritated or when blood vessels in the nose are broken. There are many causes of nosebleeds. In all cases, people who take aspirin or other drugs that interfere with blood clotting (anticoagulants), people with clotting disorders, and people with hardening of the arteries (arteriosclerosis) are more likely to develop nosebleeds.

Common causes

The most common causes of nosebleeds are

Trauma (such as nose blowing and picking)

Drying of the moist inner lining of the nose (such as occurs in winter)

Less common causes

Less common causes of nosebleeds include

Nasal infections

Foreign objects

Rendu-Osler-Weber syndrome

Tumors of the nose or sinuses

Bleeding disorders (coagulopathies)

Bodywide (systemic) disorders

High blood pressure (hypertension) may help keep a nosebleed going that has already begun but is unlikely to be the actual cause.

Answer:

Some people get nosebleeds rather often, and others rarely get them. There may be just a trickle of blood or a strong stream. If people swallow the blood, they often vomit it because blood is irritating to the stomach. Swallowed blood may pass through the digestive tract and appear in the stool as black tarry stools.