What Causes Bleeding From the Nose and Ears?

Bleeding from the nose and ears can stem from causes as mundane as dry winter air or as urgent as a skull base fracture. The two sites share something in common: both the nasal cavity and the ear canal are lined with delicate tissue and fed by small, vulnerable blood vessels that rupture more easily than blood vessels elsewhere in the body. In most cases, the nose and the ear bleed for different reasons, but a handful of conditions and injuries can trigger bleeding from both at the same time.

Why the Nose Is So Prone to Bleeding

The inside of the nose has an unusually rich blood supply. Several arteries converge on a small patch of the nasal septum called Kiesselbach’s plexus, where branches of the posterior septal artery, the greater palatine artery, the superior labial artery, and the anterior ethmoidal artery all meet.¹ Because these vessels sit just beneath a thin layer of mucous membrane, even minor irritation can break them open. This is why the vast majority of nosebleeds originate from the front of the septum and stop on their own with simple pressure.

Posterior nosebleeds, which come from arteries deeper in the nasal cavity, are less common but harder to control. They tend to occur in older adults and are more closely linked to high blood pressure and arterial disease. The distinction matters because a front-of-nose bleed you can pinch off at home is a very different clinical situation from a posterior bleed that drains down the throat.

Common Everyday Triggers for Nosebleeds

Most nosebleeds have a straightforward explanation. Dry indoor air during winter months is one of the biggest culprits, and research looking at online search behavior across multiple countries found significant peaks in public interest in nosebleeds during winter, consistent with the known effect of low humidity on nasal mucosa.² Heated indoor environments pull moisture out of the nasal lining, making it crack and bleed.

Nose picking, vigorous nose blowing, and repeated rubbing from allergies are other everyday causes. Chemical irritants also play a role. Nasal piercings, exposure to industrial chemicals, illicit drug use (particularly cocaine), long-term intranasal steroid spray use, and even improper use of nasal applicators have all been identified as causes of damage to the nasal septum that can lead to bleeding and, eventually, septal perforation.³ The common thread is anything that dries, inflames, or physically disrupts the fragile lining where those converging arteries sit.

What Makes the Ear Bleed

Ear bleeding is less common than nosebleeds and tends to worry people more, partly because the ear canal is not a place you expect to see blood. The causes generally fall into a few categories: trauma, infection, and less commonly, growths or foreign objects.

The eardrum (tympanic membrane) is the structure most often involved. A perforated eardrum can bleed, and perforations happen from a surprising range of causes. A review of traumatic eardrum perforations found that injuries came from slaps, blast waves, cotton swab insertion, water pressure during diving, and direct blows to the head, among other mechanisms.⁴ Ear infections, particularly middle ear infections that cause pressure buildup behind the drum, can also lead to bleeding if the drum ruptures. Chronic ear infections sometimes produce blood-tinged drainage over weeks.

Scratches to the ear canal from aggressive cleaning with cotton swabs or fingernails are another frequent source. The skin of the ear canal is thin and easily torn. Less commonly, growths such as polyps or cholesteatomas (abnormal skin growths behind the eardrum) can cause persistent or recurring ear bleeding.

When Both Sites Bleed at the Same Time

Simultaneous bleeding from the nose and ears is relatively unusual and raises the stakes considerably. The most serious cause is a basilar skull fracture, a break in the bone at the base of the skull that can result from car accidents, falls from height, or severe blows to the head. Because the base of the skull sits directly behind the nasal cavity and houses the structures of the middle and inner ear, a fracture there can produce bleeding from both sites at once.

Basilar skull fractures often come with other recognizable signs. Bruising around the eyes (sometimes called “raccoon eyes”) appeared in about 64% of patients with basilar skull fractures in one study of adults with traumatic brain injury.⁵ Cerebrospinal fluid (the clear liquid that cushions the brain) may also leak from the nose or ears, and that same study found CSF leaking from the nose was more common than from the ears. If you see clear, watery fluid mixed with blood draining from either site after a head injury, that combination should prompt an immediate trip to the emergency department.

Outside of trauma, a few systemic conditions can independently affect both the nose and the ears and produce bleeding from each, though usually not at the exact same moment. These are worth understanding because they can be missed when doctors focus on one site at a time.

High Blood Pressure and Nosebleeds

The relationship between high blood pressure and nosebleeds has been debated for decades, but the evidence increasingly points to a real connection, especially for posterior nosebleeds. A study of 250 emergency department patients found that people with stage 2 hypertension (the more severe category) were more likely to have posterior nosebleeds, which fits with what we know about how sustained high pressure damages the deeper arteries of the nose, particularly branches of the sphenopalatine artery.⁶

The mechanism appears to be chronic vascular damage rather than a simple spike in blood pressure causing a vessel to pop. Postmortem studies have found degenerative fibrous changes in the nasal blood vessels of people with long-standing hypertension, and patients with hypertension who get nosebleeds tend to show more atherosclerosis in their retinal arteries as well, suggesting widespread vascular fragility.⁷ The takeaway is that recurrent nosebleeds in someone with known or suspected high blood pressure deserve a blood pressure check, not just a tissue.

Research looking at different age groups has added nuance. In adults aged 26 to 40, nosebleeds were associated with both alcohol use and hypertension. In the 41-to-55 age range, hypertension was the dominant association. And in people 56 to 70, high triglycerides and a protein linked to cholesterol transport (apolipoprotein B) joined hypertension as risk factors, suggesting that the broader picture of cardiovascular health matters more as people age.⁸

Blood Thinners and Other Medications

Anticoagulants and antiplatelet drugs are among the most common medication-related causes of nosebleeds. In a hospital-based study of 284 patients on these medications, roughly one in four experienced nosebleeds.⁹ Being over 60, male, having congestive heart failure, and being on warfarin specifically were all independent risk factors for nosebleeds in that group.

Newer anticoagulants like rivaroxaban have not eliminated the problem. One study found that patients on these newer drugs showed a trend toward more recurrent bleeding compared to those on older anticoagulants, though the episodes did not tend to be more severe or lead to dangerous drops in hemoglobin levels.¹⁰ The practical concern is that anticoagulated patients who start having nosebleeds are more likely to have repeat episodes, which means they often need closer follow-up and sometimes adjustments to their medication regimen.

If you take a blood thinner and develop nosebleeds or notice blood when cleaning your ears, do not stop or adjust your medication on your own. These drugs are typically prescribed for serious conditions like atrial fibrillation or a history of blood clots, and stopping them abruptly carries its own risks. Bring it up with the prescribing doctor so the bleeding can be managed alongside the underlying condition.

Bleeding Disorders That Affect Both Sites

Some people bleed more easily from any mucosal surface because of inherited conditions that impair clotting. Von Willebrand disease, the most common inherited bleeding disorder, is a good example. In a study of males with von Willebrand disease, nosebleeds were the single most common bleeding symptom, reported by 53% of patients. Bruising (50%), postoperative bleeding (47%), and oral bleeding (29%) rounded out the picture.¹¹ Ear, nose, and throat procedures were a particularly common trigger for bleeding in this group, with postoperative bleeding from these procedures occurring at a median age of about 10 years, despite most patients having a known bleeding history or family history by that point.

The broader category of clotting disorders relevant to the ear and nose includes vascular disorders, platelet disorders (where the cells that form initial clots are too few or don’t function properly), and disorders of the coagulation cascade (where the proteins that stabilize clots are missing or deficient).¹² In children, recurrent nosebleeds or persistent bleeding after minor ear or throat procedures can be one of the first signs that a bleeding disorder exists. When a child has frequent, hard-to-stop nosebleeds that seem disproportionate to the cause, a blood workup is a reasonable step.

Hereditary Hemorrhagic Telangiectasia

Hereditary hemorrhagic telangiectasia (HHT) deserves its own mention because it produces some of the most severe and recurrent nosebleeds of any condition. HHT is an inherited vascular disorder characterized by fragile blood vessel malformations that lack normal capillary beds. People with HHT develop small red spots (telangiectases) on the skin and mucous membranes, and they can also develop larger arteriovenous malformations in the lungs, liver, and brain that carry serious risks.¹³

Nosebleeds in HHT are often daily, can be heavy enough to cause anemia, and tend to worsen with age. Because the condition is inherited in an autosomal dominant pattern, it runs strongly in families. If you have a parent with HHT, the chance of inheriting it is about 50%. The condition is underdiagnosed partly because many people assume their frequent nosebleeds are just bad luck or dry air. A family history of heavy, recurrent nosebleeds in multiple relatives, especially combined with visible red spots on the lips, tongue, or fingertips, should raise the question.

Autoimmune Conditions That Target the Ears and Nose

Granulomatosis with polyangiitis (GPA, formerly known as Wegener’s granulomatosis) is a rare autoimmune disease that inflames small blood vessels throughout the body. Its classic pattern of involvement is the ears, nose, and upper airways (the “E” in its ELK triad), along with the lungs and kidneys.¹⁴ Most people with GPA first notice symptoms in the head and neck region, with involvement ranging from the nasal septum and sinuses to the oral mucosa, larynx, and all parts of the ear.

GPA can present as disease limited to the ears and upper airways, or it can progress to severe systemic illness affecting the kidneys and lungs.¹⁵ Early nasal symptoms include crusting, blood-tinged discharge, and nasal obstruction that does not respond to typical allergy or sinus treatments. Ear involvement can include hearing loss, ear pain, and drainage. The reason GPA matters in a discussion of nose and ear bleeding is that it is one of the few conditions where chronic, unexplained bleeding or crusting from both sites can be the earliest clue to a serious systemic disease. If standard treatments for nosebleeds or ear problems keep failing, and particularly if you also have joint pain, skin rashes, or unexplained kidney problems, GPA is something a doctor should consider.

Pressure Changes and Barotrauma

Rapid changes in ambient pressure can injure both the ears and the nasal sinuses. Barotrauma follows the principle that gas in a confined space expands or compresses when external pressure changes, and if the body cannot equalize that pressure quickly enough, tissue damage results.¹⁶ Divers, airline passengers with upper respiratory infections, and people exposed to blast waves are all vulnerable.

In the ear, the eustachian tube normally ventilates the middle ear to match external pressure. When it is blocked by congestion or swelling, the pressure difference can stretch or rupture the eardrum, producing pain and bleeding. In the sinuses, blocked drainage pathways prevent pressure equalization during descent, which can rupture small blood vessels and cause a nosebleed. People who fly with a bad cold sometimes experience both a bloody nose and ear pain on the same flight for exactly this reason. The combination is uncomfortable but usually resolves on its own once the congestion clears and pressure equalizes.

Rare Growths and Tumors

Tumors in the nose or ear are uncommon causes of bleeding, but they are worth mentioning because persistent, one-sided bleeding that does not respond to standard measures can be a clue. In the nose, benign growths like nasal septal schwannomas (tumors of the nerve sheath) can cause one-sided nasal congestion, nosebleeds, and headaches.¹⁷ More serious possibilities include nasopharyngeal carcinomas and juvenile angiofibromas (seen mostly in adolescent males). In the ear, glomus tumors and squamous cell carcinomas can produce bloody discharge.

The red flag pattern is unilateral bleeding, meaning it consistently comes from only one nostril or one ear. Most benign causes of nosebleeds can alternate sides or affect both, so persistent bleeding locked to one side warrants an examination with a scope or imaging to rule out a growth.

How Nosebleeds and Ear Bleeding Are Managed

For most nosebleeds, the initial treatment is straightforward: lean forward, pinch the soft part of the nose firmly for 10 to 15 minutes, and avoid swallowing blood. Clinical guidelines recommend applying a vasoconstrictor (like oxymetazoline spray) and direct pressure as first-line treatment.¹⁸ If that fails, a doctor may use nasal cautery (sealing the bleeding vessel with a chemical or electrical tool) or nasal packing (inserting material to apply sustained pressure from inside).

Posterior nosebleeds that do not respond to packing are a different challenge. The standard next steps are endoscopic arterial ligation, where a surgeon identifies and clips the bleeding artery through a scope, or interventional radiology, where a catheter-based approach blocks the artery from inside the blood vessel.¹⁹ These procedures are reserved for persistent or recurrent cases and are quite effective.

Ear bleeding management depends entirely on the cause. A ruptured eardrum from a slap or pressure change usually heals on its own within weeks, though keeping water out of the ear canal during healing is important. Bleeding from an ear infection needs antibiotic treatment. If the bleeding follows a head injury, the priority shifts to imaging the skull and brain rather than treating the ear itself. Any blood or clear fluid from the ear after significant head trauma should be assumed to involve a skull fracture until proven otherwise, and the ear canal should not be packed or irrigated in that scenario.

Seasonal and Environmental Prevention

For people who get recurrent nosebleeds in dry weather, a few preventive steps reduce episodes. A cool-mist humidifier in the bedroom keeps nasal membranes from drying out overnight. Saline nasal spray or a thin layer of petroleum jelly applied just inside the nostrils with a clean fingertip helps maintain moisture. Avoiding aggressive nose blowing after a cold and resisting the urge to pick at crusts inside the nose both reduce the chance of reopening a healing spot on the septum.

For ear protection during pressure changes, chewing gum or swallowing frequently during airplane descent encourages the eustachian tube to open. If you are congested, a decongestant nasal spray used shortly before descent can help. Divers with any degree of nasal or sinus congestion are generally advised not to dive until symptoms resolve, because the pressure changes underwater are far more intense than those experienced in a pressurized aircraft cabin, and the risk of both ear and sinus barotrauma rises sharply.