Last Updated June 2023 | This article was created by editorial staff and reviewed by Deepak S. Patel, MD, FAAFP, FACSM

What are nosebleeds?

A nosebleed is blood loss from the tissue that lines your nose. It can affect both nostrils, but most often occurs in only one nostril. Usually, a nosebleed is not serious.

The nose has many blood vessels in it to help warm and humidify the air you breathe. These vessels lie close to the surface, making them easy to injure — which can cause a nosebleed. Sometimes, though, nosebleeds are more serious. These stem from large vessels in the back of the nose. Nosebleeds from these larger vessels often occur after an injury, in young children, or in the elderly. Usually, the older the patient, the more serious the nosebleed.

Symptoms of nosebleeds

Most often, you will have no other symptoms other than the nosebleed itself.

Most common nose bleed causes

Two of the most common causes of nosebleeds are dryness (often caused by indoor heat in the winter) and nose picking. These 2 things work together — nose picking occurs more often when mucus in the nose is dry and crusty. Colds also can cause nosebleeds.

Less common causes include injuries, allergies, or the use of illegal drugs, such as cocaine. Children may stick small objects up their noses, and that can cause the nose to bleed. Older people may have atherosclerosis (which is the hardening of the arteries), infections, high blood pressure, or blood clotting disorders that may cause nosebleeds. Nosebleeds may occur and last longer if you’re taking drugs that interfere with blood clotting, such as aspirin. A rare cause of frequent nosebleeds is a disorder called hereditary hemorrhagic telangiectasia (HHT). Sometimes, the cause of nosebleeds can’t be determined.

Frequent nosebleeds may mean you have a more serious problem. For example, nosebleeds and bruising can be early signs of leukemia. Nosebleeds can also be a sign of a blood clotting or blood vessel disorder, or a nasal tumor (both non-cancerous and cancerous).

How are nosebleeds diagnosed?

There is usually no need to formally diagnose a nosebleed. If your nose is bleeding, it’s fairly self-evident.

Can nosebleeds be prevented or avoided?

Tips for preventing nosebleeds:

  • Keep children’s fingernails short to limit nose injury and to discourage nose picking.
  • Counteract the drying effects of indoor heated air by using a humidifier at night in your bedroom.
  • Quit smoking. Smoking dries out your nose and also irritates it.
  • Open your mouth when you sneeze.

Nosebleed treatment

A nosebleed can be scary to get — or see — but try to stay calm. Most nosebleeds look much worse than they really are. Almost all nosebleeds can be treated at home.

If you get a nosebleed, sit down and lean slightly forward. Keeping your head above your heart will slow the bleeding. Lean forward so the blood will drain out of your nose instead of down the back of your throat. If you lean back, you may swallow the blood. This can irritate your stomach.

Use your thumb and index finger to squeeze together the soft portion of your nose. This area is located between the end of your nose and the hard, bony ridge that forms the bridge of your nose. Keep holding your nose until the bleeding stops. Don’t let go for at least 5 minutes. If it’s still bleeding, hold it again for another 5 to 10 minutes.

Once the bleeding stops, wait a few hours before doing anything that might make it start again, such as bending over or blowing your nose.

When to see your doctor

See your doctor if:

  • The bleeding goes on for more than 20 minutes.
  • The bleeding was caused by an injury, such as a fall or something hitting your face. In some cases, this may be a sign of internal bleeding.
  • The amount of blood makes it hard to breathe.
  • A child under 2 has a nosebleed.
  • You’re taking a blood thinning medicine.
  • You get nosebleeds weekly.

Your doctor will try to find out where the bleeding is coming from in your nose. He or she will probably ask you some questions and examine your nose. If the bleeding doesn’t stop on its own or when pressure is applied, your doctor may cauterize the bleeding vessel or pack your nose to stop the bleeding. Cauterization involves using a special solution called silver nitrate or an electrical or heating device to burn the vessel so that it stops bleeding. Your doctor will numb your nose before the procedure. Packing the nose involves putting special gauze or an inflatable latex balloon into the nose so that enough pressure is placed on the vessel to make it stop bleeding

Living with nosebleeds

Nosebleeds can be a nuisance. They come on suddenly, often with no warning. They usually aren’t harmful.

Questions for your doctor

  • I get a lot of nosebleeds. What can I do to stop them?
  • How long should I wait to call the doctor if I’m having a nosebleed?
  • I’m around secondhand smoke a lot. Could that be causing my nosebleeds?
  • Are nosebleeds more common in winter?
  • What can I do to prevent my child from picking his/her nose?
  • Could my nosebleeds be a sign of something more serious?
  • Should I avoid or hold off on any of my regular prescription medicines or over-the-counter medicines?


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