Epistaxis (nosebleeds) - Causes, Treatment & When to See a Doctor

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What is Epistaxis (nosebleeds)?

Epistaxis, commonly known as a nosebleed, is bleeding from the nasal mucosa (the lining of the nose). It can range from a few drops of blood that stop quickly to profuse bleeding that lasts for many minutes. The majority of nosebleeds are anterior—originating from the front part of the nasal septum, particularly the “Kiesselbach’s plexus,” a network of tiny blood vessels. Less commonly, bleeding may arise from the deeper, posterior portion of the nasal cavity and is more difficult to control.

Although generally benign, epistaxis can be a sign of an underlying medical condition, a reaction to medication, or a problem that warrants urgent attention. Understanding the causes, accompanying symptoms, and when to seek care helps patients manage occasional bleeds and recognize when professional help is needed.

Common Causes

Most nosebleeds have an identifiable trigger. Below are the most frequent causes, grouped by category.

• Local irritation or trauma – nose picking, blowing the nose hard, facial injuries, or recent nasal surgery.
• Dry air – low humidity (especially in winter), heated indoor environments, or high-altitude climates dry out the nasal lining.
• Allergic rhinitis & sinusitis – chronic inflammation makes mucosa fragile and prone to bleeding.
• Upper respiratory infections – colds, flu, or COVID‑19 increase nose blowing and mucosal irritation.
• Medications – anticoagulants (warfarin, apixaban), antiplatelet agents (aspirin, clopidogrel), and nasal sprays containing steroids or decongestants.
• Systemic bleeding disorders – hemophilia, von Willebrand disease, platelet function defects, or liver disease‑related coagulopathy.
• Hypertension – high blood pressure can worsen bleeding once a vessel is injured, especially in posterior bleeds.
• Structural abnormalities – deviated septum, nasal polyps, or congenital vascular malformations.
• Environmental irritants – cigarette smoke, chemical fumes, or pollutants that inflame the nasal mucosa.
• Rare tumors – malignant (e.g., nasopharyngeal carcinoma) or benign (e.g., hemangioma) lesions can erode vessels.

Associated Symptoms

When a nosebleed occurs, patients may notice other signs that help pinpoint the cause.

• Nasular congestion or a “blocked” feeling
• Itching, sneezing, or watery discharge (suggesting allergies or infection)
• Facial pain or pressure (possible sinusitis)
• Bruising or petechiae elsewhere on the body (possible clotting disorder)
• Easy bruising, joint pain, or prolonged bleeding after minor cuts (systemic bleeding disorder)
• Headache, visual changes, or facial swelling (rarely, a sign of a tumor or severe hypertension)
• Fever, chills, or malaise (infection-related bleed)
• Feeling light‑headed, dizziness, or fainting (significant blood loss or underlying cardiac issues)

When to See a Doctor

Most nosebleeds stop on their own or with simple first‑aid measures. However, you should schedule an appointment—or go to urgent care—if any of the following occur:

• Bleeding persists for more than 20 minutes despite applying pressure.
• Bleeding is heavy (soaking through a tissue or gauze every few minutes).
• You have had more than 3–4 episodes in a month.
• Bleeds are associated with significant pain, facial swelling, or visual changes.
• You take blood‑thinning medication and notice a change in bleed frequency or severity.
• There is a history of bleeding disorders, liver disease, or uncontrolled hypertension.
• The nosebleed follows a head injury, especially if you have a concussion, loss of consciousness, or vomiting.
• Bleeding occurs after surgery on the nose, sinuses, or palate.

Diagnosis

Evaluation generally begins with a thorough history and physical exam.

History

• Onset, duration, frequency, and severity of bleeds.
• Recent trauma, surgery, or use of nasal sprays.
• Medication list (including over‑the‑counter and herbal supplements).
• Medical conditions—especially hypertension, clotting disorders, liver disease, or autoimmune disease.
• Family history of bleeding disorders.

Physical Examination

• Inspect the nostrils with good lighting; identify the bleeding site (anterior vs. posterior).
• Assess for nasal crusting, polyps, septal deviation, or tumorous lesions.
• Check blood pressure and heart rate.
• Examine the oral cavity, throat, and ears for concurrent bleeding.

Additional Tests (when indicated)

• Complete blood count (CBC) – evaluates anemia and platelet count.
• Coagulation panel – PT/INR, aPTT to detect clotting abnormalities.
• Basic metabolic panel – assesses kidney function, which can affect blood pressure.
• Imaging – CT scan of sinuses or MRI if a posterior source, tumor, or skull‑base fracture is suspected.
• Nasal endoscopy – performed by an ENT specialist for direct visualization of the bleeding site.

Treatment Options

Treatment is tailored to the severity, location of bleeding, and underlying cause.

First‑Aid (Home) Measures

1. Sit upright and lean forward – prevents blood from flowing down the throat, which can cause nausea or airway irritation.
2. Pinch the soft part of the nose (just below the bony bridge) for 10‑15 minutes, breathing through the mouth.
3. Apply a cold compress to the bridge of the nose to cause vasoconstriction.
4. After bleeding stops, gently apply a thin layer of petroleum jelly or saline gel inside the nostrils to keep the mucosa moist.
5. If the bleed recurs, repeat the pinch technique up to three times before seeking care.

Medical Interventions

• Cauterization – chemical (silver nitrate) or electrical cautery applied to a visible bleeding vessel.
• Nasal packing – gauze, silicone, or inflatable balloon packs placed in the nasal cavity to apply pressure; usually removed after 24‑48 hours.
• Topical hemostatic agents – e.g., tranexamic acid spray, oxidized cellulose, or gelatin sponges.
• Systemic therapy – correction of coagulopathy (vitamin K, fresh frozen plasma, platelet transfusion) or adjustment of anticoagulant dosage.
• Management of underlying disease – control hypertension, treat chronic sinusitis, adjust allergy therapy, or address liver disease.
• Surgical options – for refractory posterior bleeds, arterial ligation (sphenopalatine artery) or endoscopic sinus surgery may be required.

When to Use Emergency Services

If home measures fail and bleeding is brisk, or if the patient shows any red‑flag symptoms (see section below), call 911 or go to the nearest emergency department.

Prevention Tips

Many nosebleeds are preventable with simple lifestyle changes and proper nasal care.

• Humidify indoor air – use a humidifier, especially in winter or dry climates; aim for 30‑50% relative humidity.
• Apply saline nasal sprays or gels 2–3 times daily to keep the mucosa moist.
• Avoid nose picking and excessive forceful nose blowing.
• Use protective gear (helmets, face masks) during sports or activities with a risk of facial trauma.
• Quit smoking and limit exposure to secondhand smoke or chemical irritants.
• If you take anticoagulants, have your INR/coagulation status monitored regularly and discuss dose adjustments with your provider.
• Control blood pressure through diet, exercise, and medication adherence.
• Manage allergies with antihistamines, intranasal corticosteroids, or immunotherapy as prescribed.
• For frequent bleeds, consider using a nasal emollient (e.g., lanolin ointment) before bed.

Emergency Warning Signs

Key Take‑aways

Epistaxis is a common yet usually benign condition. Simple measures—such as applying pressure, using humidifiers, and avoiding nasal trauma—stop most episodes. However, recurrent or heavy nosebleeds may signal an underlying health problem or require medical treatment. Understanding the causes, staying vigilant for warning signs, and seeking timely professional care can prevent complications and improve overall nasal health.

References:

• Mayo Clinic. “Nosebleeds.” mayoclinic.org
• Cleveland Clinic. “Epistaxis (Nosebleeds).” clevelandclinic.org
• American Academy of Otolaryngology–Head & Neck Surgery. “Nosebleeds (Epistaxis).” entnet.org
• National Institutes of Health. “Bleeding Disorders.” nih.gov
• World Health Organization. “Hypertension Fact Sheet.” who.int

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