Nosebleeds: Common Causes, First Aid, and When to Seek Care

Nosebleeds, also called epistaxis, are common and are usually caused by dryness, irritation, minor injury, colds, allergies, or medications. Most stop with simple first aid, but heavy, recurrent, or unusual bleeding should be assessed by a qualified doctor.

Overview

A nosebleed is bleeding from the tissues inside the nose. The medical term is epistaxis. Nosebleeds are very common because the lining of the nose has many small blood vessels close to the surface. These vessels help warm and humidify the air a person breathes, but they can break easily when the lining becomes dry, inflamed, or injured.

Most nosebleeds are anterior, meaning they start near the front of the nose, usually from a small area on the nasal septum. The septum is the wall that separates the two nostrils. Anterior nosebleeds are usually mild and can often be managed at home with correct first aid.

Less commonly, bleeding starts deeper in the nose. These posterior nosebleeds may be harder to control and are more likely to occur in older adults or people taking medicines that affect blood clotting. Although many nosebleeds are not serious, knowing what to do in the first few minutes can make the situation easier and safer.

Common Symptoms and What a Nosebleed May Feel Like

The main symptom is blood coming from one or both nostrils. Some people notice a few drops on a tissue, while others may have a steady flow. A person may also feel liquid running down the back of the throat, especially if they are lying down or if the bleeding is farther back in the nose.

During a nosebleed, it is common to feel worried, lightheaded, or nauseated, particularly if blood is swallowed. Swallowed blood can irritate the stomach and may later cause vomiting or dark stools, which can be confusing. Leaning forward and spitting out blood rather than swallowing it can help reduce nausea.

Features that can help doctors understand the cause include whether the bleeding is from one side or both sides, how often it happens, how long it lasts, and whether there are other symptoms such as nasal blockage, facial pain, easy bruising, gum bleeding, or recent injury. Recurrent bleeding from the same nostril should be checked, even if each episode seems mild.

Common Causes and Risk Factors

Dryness is one of the most frequent causes of nosebleeds. Heated indoor air, air conditioning, low humidity, high altitude, and cold weather can dry the nasal lining. When the lining cracks or crusts, even a small touch, sneeze, or nose blow can break tiny blood vessels.

Irritation and inflammation are also common triggers. Colds, sinus infections, allergic rhinitis, frequent sneezing, and repeated nose blowing can make the lining fragile. Nose picking, rubbing, inserting objects into the nose, or using nasal sprays incorrectly can also injure the septum. In children, nose picking and minor trauma are especially common causes.

Some people have a higher risk because of medicines or medical conditions. Blood thinners, antiplatelet medicines, and some pain relievers can make bleeding last longer. High blood pressure does not usually cause a nosebleed by itself, but uncontrolled blood pressure may make bleeding more difficult to stop. Bleeding disorders, liver disease, kidney disease, hereditary conditions affecting blood vessels, and rarely tumors of the nose or sinuses can also be associated with recurrent or unusual bleeding.

• Common triggers include dry air, colds, allergies, nose picking, forceful blowing, and minor injury.
• Risk may increase with blood-thinning medicines, frequent nasal irritation, or certain medical conditions.
• Persistent one-sided bleeding, blockage, or a visible nasal mass should be assessed by an ENT specialist.

First Aid: How to Stop a Nosebleed Safely

The best first step is to stay calm and sit upright. The person should lean slightly forward, not backward. Leaning forward allows blood to drain out of the nose and helps prevent swallowing blood. Lying down or tilting the head back can cause blood to run into the throat.

Using the thumb and index finger, pinch the soft part of the nose just below the bony bridge. Pressure should be firm and continuous for 10 to 15 minutes without repeatedly checking. Breathing can be done through the mouth. If available, a cold pack wrapped in a cloth may be placed over the bridge of the nose, although pressure is the most important part.

If bleeding continues, the same pressure technique can be repeated once. Some people who have been advised by a doctor may use a nasal decongestant spray during first aid, but this is not suitable for everyone and should be used according to medical or pharmacist guidance. Tissues or cotton should not be pushed deep into the nose because this can worsen irritation and may restart bleeding when removed.

• Sit upright and lean forward.
• Pinch the soft part of the nose continuously for 10 to 15 minutes.
• Spit out blood that collects in the mouth instead of swallowing it.
• Avoid blowing, rubbing, or picking the nose after bleeding stops.

Diagnosis: How Doctors Evaluate Nosebleeds

When a person seeks medical care for a nosebleed, the doctor will usually begin with questions about the bleeding pattern. Important details include how often it happens, which side bleeds, how long episodes last, what seems to trigger them, and whether the person takes medicines that affect clotting. The doctor may also ask about allergies, sinus symptoms, previous nasal surgery, trauma, high blood pressure, or a family history of bleeding problems.

The nose is examined to look for crusting, inflammation, a visible bleeding point, a deviated septum, polyps, infection, or signs of injury. An ENT specialist may use nasal endoscopy, a thin instrument with a light and camera, to examine deeper areas of the nasal cavity. This can be especially helpful for recurrent, one-sided, or difficult-to-locate bleeding.

Laboratory tests are not needed for every simple nosebleed. They may be recommended if bleeding is heavy, frequent, prolonged, or associated with easy bruising, gum bleeding, anemia symptoms, or blood-thinning medicines. Imaging tests are reserved for selected situations, such as suspected facial injury, sinus disease, or a mass.

Treatment Options

Treatment depends on where the bleeding starts, how severe it is, and whether there are underlying factors. If bleeding has stopped and the cause appears to be dryness or irritation, treatment may focus on moisturizing the nasal lining and avoiding triggers. A doctor may recommend saline spray, a gentle moisturizing gel, or treatment for allergies or infection when appropriate.

If a clear bleeding point is seen, a clinician may use cautery to seal the small vessel. This is often done with a chemical agent such as silver nitrate or with specialized equipment, depending on the situation. Cautery is usually performed after the area is numbed. It is important that cautery is done carefully, usually on one side of the septum at a time, to reduce the risk of irritation or septal injury.

If bleeding does not stop with pressure or cautery, nasal packing may be used. Packing may be absorbable or may need removal after a short period, depending on the material and the patient’s condition. Posterior nosebleeds or severe recurrent bleeding may require hospital-based care, endoscopic treatment by an ENT specialist, or, rarely, procedures to close or block the responsible blood vessel. Doctors will also review medicines and medical conditions that may be contributing, but patients should not stop prescribed blood thinners unless instructed by their doctor.

Prevention, Self-Care, and When to See a Doctor

Many nosebleeds can be reduced by keeping the nasal lining moist and avoiding irritation. A humidifier may help in dry rooms, especially during winter or in air-conditioned environments. Saline sprays or rinses can help moisturize the nose, and a small amount of nasal moisturizing gel may be recommended for dryness. People should avoid picking the nose, trim children’s fingernails, and blow the nose gently.

Correct use of nasal sprays matters. The spray tip should generally be aimed slightly outward, away from the septum, rather than straight up the middle of the nose. Allergies should be treated consistently, because itching and sneezing can contribute to bleeding. Protective equipment is important for sports or work activities that may injure the face. Smoking and exposure to irritants can also dry and inflame the nasal lining.

Medical care is recommended if a nosebleed lasts longer than about 20 minutes despite correct pressure, is very heavy, causes weakness or fainting, occurs after a significant head or facial injury, or makes breathing difficult. A doctor should also evaluate recurrent nosebleeds, nosebleeds in a child under 2 years of age, bleeding while taking anticoagulant or antiplatelet medicines, or bleeding associated with easy bruising or other unusual bleeding. Acibadem International’s multidisciplinary specialists and JCI-accredited hospitals can diagnose and treat ENT conditions, including recurrent or complex nosebleeds, for international patients when specialist care is needed.

Frequently asked questions

What is the correct way to stop a nosebleed?

Sit upright, lean slightly forward, and pinch the soft part of the nose firmly for 10 to 15 minutes without checking repeatedly. Breathe through the mouth and spit out any blood that reaches the mouth. If bleeding continues after repeating this once, medical care may be needed.

Should a person tilt the head back during a nosebleed?

No. Tilting the head back can cause blood to run into the throat and stomach, which may lead to coughing, choking, nausea, or vomiting. Leaning forward is safer and helps show whether the bleeding has stopped.

Why do nosebleeds happen more often in winter?

Cold outdoor air and heated indoor air often have low humidity, which can dry and crack the nasal lining. Dry, crusted tissue is more likely to bleed when touched, rubbed, or blown. Humidifying the room and using saline spray may help reduce winter nosebleeds.

Can high blood pressure cause nosebleeds?

High blood pressure is not usually the direct cause of most nosebleeds. However, if blood pressure is very high or poorly controlled, bleeding may be harder to stop. Anyone with frequent nosebleeds and known hypertension should discuss both issues with a doctor.

When are recurrent nosebleeds a concern?

Recurrent nosebleeds should be checked if they happen often, come from the same nostril, last a long time, or occur with nasal blockage, facial pain, easy bruising, or gum bleeding. Most causes are manageable, but an examination helps identify dryness, inflammation, a visible vessel, medication effects, or less common conditions.

Can children get nosebleeds from nose picking?

Yes. Nose picking is one of the most common reasons children have nosebleeds because it irritates the delicate lining near the front of the septum. Keeping nails short, treating allergies, and moisturizing the nose can help reduce episodes.

Is it safe to stop blood-thinning medicine after a nosebleed?

A person should not stop anticoagulant or antiplatelet medicine unless a doctor specifically advises it. These medicines are often prescribed to prevent serious conditions such as stroke or blood clots. If nosebleeds occur while taking them, the prescribing doctor or an ENT specialist can help adjust care safely.

References

• American Academy of Otolaryngology-Head and Neck Surgery
• Mayo Clinic
• Cleveland Clinic
• National Health Service
• Merck Manual Professional Edition

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.