The nose contains many blood vessels, which are located close to the surface in the front and back of the nose. Nosebleeds are common in adults and children between the ages of 3 and There are two kinds of nosebleeds. An anterior nosebleed occurs when the blood vessels in the front of the nose break and bleed. A posterior nosebleed occurs in the back or the deepest part of the nose. In this case, blood flows down the back of the throat.
Posterior nosebleeds can be dangerous. There are many causes of nosebleeds. A sudden or infrequent nosebleed is rarely serious. If you have frequent nosebleeds, you could have a more serious problem. Dry air is the most common cause of nosebleeds. Living in a dry climate and using a central heating system can dry out the nasal membranes , which are tissues inside the nose.
This dryness causes crusting inside the nose. Crusting may itch or become irritated. If your nose is scratched or picked, it can bleed. Taking antihistamines and decongestants for allergies , colds , or sinus problems can also dry out the nasal membranes and cause nosebleeds. Frequent nose blowing is another cause of nosebleeds. However, you should seek medical attention if your nosebleed lasts longer than 20 minutes, or if it occurs after an injury. This may be a sign of a posterior nosebleed, which is more serious.
Injuries that might cause a nosebleed include a fall, a car accident, or a punch in the face. Nosebleeds that occur after an injury may indicate a broken nose , skull fracture , or internal bleeding. If you seek medical attention for a nosebleed, your doctor will conduct a physical examination to determine a cause.
However, your doctor might use diagnostic tests to find the cause. These tests include:. Treatment for nosebleeds will vary depending on the type and cause of the nosebleed. Read on to find out about treatments for different nosebleeds. If you have an anterior nosebleed, you bleed from the front of your nose, usually a nostril. You can try to treat an anterior nosebleed at home. Your use of this information means that you agree to the Terms of Use. Learn how we develop our content. To learn more about Healthwise, visit Healthwise.
Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated. Updated visitor guidelines. You are here Home » Frequent Nosebleeds. Top of the page. Topic Overview Nosebleeds that recur often are commonly caused by bleeding from the front of the nose anterior epistaxis. Common causes of this type of nosebleed are: Blowing or picking the nose. Structural problems in the nose, either present from birth congenital or caused by an injury.
Low humidity. Minor health problems, such as colds or allergies. Minor injuries to the nose. Also, don't tilt your head back. This common practice will cause blood to run into your throat. This can make you cough or choke, and if you swallow a lot of blood, you might vomit.
If you've tried the steps above twice and the bleeding continues after the second attempt, you'll need to see your school nurse or a doctor. After you've stopped the initial nosebleed, don't lift heavy objects or do other activities that cause you to strain, and try not to blow your nose for 24 hours.
The most common kind of nosebleed is an anterior nosebleed , which comes from the front of the nose. Capillaries, or very small blood vessels, that are inside the nose may break and bleed, causing this type of nosebleed.
Another kind of nosebleed is a posterior nosebleed , which comes from the deepest part of the nose. Blood from a posterior nosebleed flows down the back of the throat even if the person is sitting or standing.
Teens rarely have posterior nosebleeds. They're more common in older people, people who have high blood pressure , and people who have had nose or face injuries.
The most common cause of anterior nosebleeds is dry air. A dry climate or heated indoor air irritates and dries out nasal membranes, causing crusts that may itch and then bleed when scratched or picked. Colds may also irritate the lining of the nose.
Bleeding may happen after repeated nose-blowing. When you combine a cold with dry winter air, you have the perfect formula for nosebleeds.
Allergies can also cause problems, and a doctor may prescribe medicine such as antihistamines or decongestants to control an itchy, runny, or stuffy nose. The medicine can also dry out the nasal membranes and contribute to nosebleeds.
0コメント