What Causes Nosebleeds? Understanding the Most Common Reasons Your Nose Bleeds

A nosebleed can be startling, especially when it seems to come out of nowhere. The good news is that most nosebleeds are not serious and can be treated easily at home. Understanding what causes them can help you prevent future episodes and know when it's time to seek medical care. Rebecca Huebsch, Director of Ambulance Services, shares his/her expertise to help explain the common causes of nosebleeds, along with how to manage and prevent them.

Why Do Nosebleeds Happen?

The inside of your nose contains many tiny blood vessels that sit close to the surface. Because these vessels are delicate, they can break and bleed when irritated, injured, or exposed to certain environmental conditions.

1. Dry Air

One of the most common causes of nosebleeds is dry air. Whether it's cold winter weather, indoor heating, or air conditioning, dry air can cause the lining of your nose to become cracked and irritated. When the nasal passages dry out, blood vessels become more vulnerable to bleeding.

Rebecca Huebsch explained, "We tend to see more nosebleeds during the winter months when the air is cold and dry and our furnaces are running. Keeping moisture in the air and in the nasal passages can make a big difference for people who experience recurring nosebleeds."

2. Nose Picking or Excessive Rubbing

Children and adults alike can trigger nosebleeds by picking, rubbing, or scratching the inside of the nose. Even frequent nose blowing can irritate the nasal lining and damage small blood vessels.

3. Colds, Allergies, and Sinus Infections

When you're dealing with a cold, seasonal allergies, or a sinus infection, the tissues inside your nose can become inflamed and irritated. This inflammation increases the likelihood of bleeding, especially if you're frequently blowing your nose.

4. Medications

Certain medications can make nosebleeds more common. These include:

• Blood thinners
• Aspirin
• Nasal steroid sprays
• Overused decongestant nasal sprays

Rebecca Huebsch shared, "If you take a blood thinner and develop frequent nosebleeds, don't stop taking your medication on your own. Talk with your healthcare provider so we can help determine what may be contributing to the bleeding and the safest way to manage it."

5. Injury to the Nose

A bump, fall, sports injury, or other trauma to the nose can damage blood vessels and cause bleeding. Nosebleeds following an injury are usually easy to identify because there is an obvious cause.

6. High Blood Pressure

Although high blood pressure doesn't typically cause nosebleeds directly, it can make bleeding more difficult to control once it starts.

7. Underlying Health Conditions

In some cases, repeated or severe nosebleeds may be linked to an underlying medical condition, such as:

• Blood clotting disorders
• Low platelet counts
• Liver disease
• Nasal polyps
• Rare tumors in the nasal passages

If nosebleeds occur frequently, it may be worth discussing them with a healthcare professional.

How to Stop a Nosebleed

If a nosebleed occurs, follow these simple steps:

1. Sit upright and lean slightly forward.
2. Pinch the soft part of your nose just below the bridge.
3. Hold firm, steady pressure for 10 to 15 minutes.
4. Breathe through your mouth.
5. Avoid tilting your head back, as this can cause blood to flow into your throat.

Most nosebleeds will stop within a few minutes with proper pressure.

Rebecca Huebsch emphasized the importance of proper positioning when stopping a nosebleed. "One of the biggest things to remember is to lean forward, not backward. Pinch the soft part of your nose and maintain steady pressure without checking every few seconds to see if the bleeding has stopped."

Tips to Prevent Nosebleeds

Preventing nosebleeds often comes down to keeping your nasal passages healthy and hydrated. Consider these strategies:

• Use a humidifier in your home.
• Apply saline nasal spray regularly.
• Drink plenty of water.
• Avoid picking your nose.
• Use nasal sprays only as directed.
• Apply a small amount of nasal moisturizer or petroleum jelly inside the nostrils if dryness is a problem.

When Should You See a Doctor?

Rebecca Huebsch notes that there are times when it's important to pay closer attention.

"An occasional nosebleed usually isn't something to worry about. What gets our attention is when nosebleeds become frequent, are difficult to stop, are unusually heavy, or occur along with other concerning symptoms."

While most nosebleeds are harmless, medical attention may be needed if:

• The bleeding lasts longer than 20 minutes.
• Nosebleeds occur frequently.
• The bleeding is very heavy.
• You feel faint, weak, or dizzy.
• You're taking blood-thinning medication.
• The nosebleed occurred after a significant injury.

Final Thoughts

Nosebleeds are common and are usually caused by dry air, irritation, allergies, illness, or minor injuries. In most cases, they can be stopped at home and prevented with a few simple habits. However, frequent or severe nosebleeds should be evaluated by a healthcare professional to rule out any underlying conditions.

"Nosebleeds can look scary because even a small amount of blood can seem like a lot, but most are manageable at home. Knowing what to do in the moment, how to help prevent them, and when it's time to call your healthcare provider can take some of that worry away," Rebecca Huebsch clarifies.

By understanding what causes nosebleeds and how to manage them, you can feel more prepared the next time one occurs.