Bleeding from inside the ear most commonly comes from a scratch in the ear canal, often from a cotton swab or fingernail, or from a ruptured eardrum. Less commonly, it signals an infection, pressure injury, or something more serious like a head injury. The cause usually becomes clear based on what you were doing when the bleeding started and what other symptoms you notice.
Scratches and Objects in the Ear Canal
The most frequent reason for ear bleeding is physical damage to the thin, sensitive skin lining the ear canal. Cotton swabs are the leading culprit. A study of U.S. emergency department visits found that roughly 263,000 children were treated for cotton swab injuries to the ear over a 21-year period, with bleeding accounting for about 35% of those visits. Adults are just as vulnerable. Fingernails, earbuds, bobby pins, and hearing aids can all nick the canal lining.
These minor scratches usually produce a small amount of bright red blood, sometimes mixed with earwax. The bleeding typically stops on its own within minutes. The bigger risk is what comes next: a scratch in the ear canal creates an entry point for bacteria, which can lead to an outer ear infection (swimmer’s ear) in the days that follow. If you notice increasing pain, swelling, or discharge after a scratch, that’s a sign infection has set in.
Ruptured Eardrum
A ruptured eardrum produces bloody or blood-tinged fluid draining from the ear, often accompanied by a sudden sharp pain that fades quickly, muffled hearing, and ringing. The eardrum can tear from several causes: a middle ear infection that builds up enough fluid pressure, a sudden blow to the side of the head, a very loud blast or explosion, or pushing something too deep into the canal. About 25% of children who went to the ER for cotton swab injuries had a perforated eardrum.
The good news is that most ruptured eardrums heal on their own within a few weeks, though some take months. During that time, you need to keep water out of the ear to prevent infection. If the hole doesn’t close naturally, an ENT specialist can seal it with a small patch applied in an office visit, or in stubborn cases, perform a procedure called tympanoplasty using a graft of your own tissue.
Ear Infections
Middle ear infections can cause enough fluid and pressure buildup behind the eardrum to eventually rupture it, producing bloody or pus-filled drainage. You’ll usually know an infection is involved because the bleeding follows days of ear pain, fullness, and possibly fever. Once the eardrum ruptures, the pain often drops suddenly because the pressure is released.
Outer ear infections, where the ear canal itself becomes inflamed, can also cause bloody discharge. The canal swells, turns red, and may ooze fluid that ranges from clear to yellowish to blood-tinged. This type of infection is common after swimming or after scratching the canal. It typically causes intense itching that transitions to pain, a feeling of fullness, and sometimes temporary hearing loss on that side.
Pressure Changes (Barotrauma)
If your ear started bleeding during or after a flight, a scuba dive, or even a fast elevator ride, the likely cause is barotrauma. When the air pressure outside your ear changes faster than the pressure inside can equalize, the eardrum gets stretched inward. As that vacuum increases, blood vessels in and around the eardrum first leak fluid, then rupture, causing bleeding into or behind the eardrum. If the pressure difference keeps growing without relief, the eardrum itself can tear.
Barotrauma bleeding is usually accompanied by sharp ear pain, a plugged sensation, and muffled hearing. Mild cases resolve once pressure equalizes. More severe cases, where the eardrum actually perforates, follow the same healing timeline as other ruptures: weeks to months for the membrane to close.
Growths and Chronic Ear Disease
Recurring or persistent bloody discharge that doesn’t follow an obvious injury or infection could point to a cholesteatoma. This is an abnormal skin growth that develops behind the eardrum, usually in people with a history of chronic ear infections or eardrum retractions. As it enlarges, it can erode nearby bone and become infected, producing discharge that may look bloody, pus-like, or foul-smelling. Cholesteatomas don’t resolve on their own and typically require surgical removal to prevent hearing loss and other complications.
In rare cases, a growth in the ear canal itself, whether benign or cancerous, can cause bleeding. These are far less common than the other causes on this list but worth considering if bleeding is unexplained and keeps coming back.
Head Injury: The Red Flag
Bleeding from the ear after any blow to the head is a medical emergency. A fracture at the base of the skull can cause blood to pool behind the eardrum or leak from the ear canal, sometimes mixed with a thin, clear fluid (cerebrospinal fluid that normally surrounds the brain). Up to 45% of patients with this type of skull fracture have a cerebrospinal fluid leak.
Call 911 or go to the emergency room immediately if ear bleeding follows a head impact and you also notice any of these:
- Dizziness or confusion
- Nausea or vomiting
- Nosebleed at the same time
- Vision changes
- Loss of consciousness, even briefly
- Bruising behind the ear or around the eyes
What to Do Right Now
If the bleeding is minor and you can identify a clear cause like a cotton swab scratch, gently place a clean cloth or sterile gauze at the opening of the ear canal to catch any drainage. Do not push anything into the ear. Do not put drops, water, or any liquid into a bleeding ear, because if the eardrum is damaged, fluid can pass through into the middle ear and cause infection.
Tilt the affected ear downward to let blood drain out rather than pool inside. Resist the urge to probe the ear to find the source of bleeding. If the bleeding stops within a few minutes and you have no other symptoms, it’s reasonable to monitor at home and keep the ear dry.
Get medical attention if the bleeding doesn’t stop, if you notice hearing loss or ringing, if there’s significant pain, or if you develop a fever. Any ear bleeding accompanied by facial weakness or drooping, severe dizziness, or discharge that smells foul warrants a prompt visit. A doctor can look inside the canal with an otoscope to pinpoint whether the bleeding is from a canal scratch, an eardrum perforation, an infection, or something deeper.