Bleeding from the ear most often comes from a scratch or cut in the ear canal, a ruptured eardrum, or an infection that has built up enough pressure to burst through the eardrum. Less commonly, it signals something more serious like a head injury. The cause matters because some situations resolve on their own while others need immediate attention.
Cotton Swabs and Foreign Objects
The most everyday cause of ear bleeding is sticking something in the ear canal. Cotton swabs are the biggest offender. A Johns Hopkins study looking at pediatric emergency rooms over 20 years found at least 35 ER visits per day for injuries related to cotton swab use in children’s ears alone. The injuries ranged from scraped canal skin to punctured eardrums.
Adults aren’t immune. Fragments of hearing aids, earbuds, and cotton swabs are the most common foreign objects retrieved from adult ear canals. In children, it’s beads, food items, and small toys. Any of these can scratch or cut the thin, sensitive skin lining the canal, which bleeds easily. Trying to fish an object out at home often makes things worse. The most frequent complications of amateur removal are skin cuts, deeper bleeding, infection, and accidental eardrum perforation.
Ear Infections
Middle ear infections, especially in children, can cause bleeding when fluid and pressure build up behind the eardrum. As the infection worsens, pus and inflammatory fluid press outward against the eardrum until it eventually tears. When it does, you may see bloody or yellowish discharge draining from the ear, often accompanied by sudden pain relief because the pressure has been released.
This type of perforation usually heals on its own within a few weeks. But untreated infections can spread to surrounding bone and tissue, so persistent ear pain with discharge warrants medical evaluation rather than a wait-and-see approach.
Ruptured Eardrum
A ruptured (perforated) eardrum is the mechanism behind several causes of ear bleeding. The eardrum can tear from:
- Pressure buildup from infection, as described above
- Sudden pressure changes (barotrauma), from flying, scuba diving, or a hard slap to the ear
- Loud blasts, such as explosions or gunshots close to the ear
- Direct puncture, from a cotton swab, hairpin, or other object pushed too deep
A ruptured eardrum typically causes sharp pain, muffled hearing, ringing, and sometimes bloody drainage. Most heal without treatment in a few weeks, though larger tears occasionally need a minor procedure to patch.
Pressure Changes During Flying or Diving
Barotrauma happens when the air pressure inside your middle ear doesn’t match the pressure outside. Your Eustachian tube, a small passage connecting your middle ear to the back of your throat, normally equalizes that pressure. When it can’t keep up, the eardrum stretches and can eventually tear.
Divers are especially vulnerable. Barotrauma can occur at depths as shallow as 4 feet of water, and it only takes about 4.4 psi of pressure difference to completely close the Eustachian tube, trapping the imbalance. The pressure needed to actually rupture the eardrum is thought to be around 100 kilopascals, roughly the force of a hard slap or a rapid, uncontrolled descent in water. Airplane descents and even a direct hit from a car airbag can generate enough force to cause the same kind of injury.
Head Trauma
Bleeding from the ear after a blow to the head is a red flag. A fracture at the base of the skull can damage the middle and inner ear structures, causing blood or clear fluid to drain from the ear canal. This type of bleeding looks different from a scratched canal: it’s often slow and steady, and may be accompanied by bruising behind the ear.
If someone is bleeding from the ear after a fall, car accident, or any significant head impact, treat it as an emergency. The ear bleeding itself isn’t the danger. It’s a visible sign that the skull may be fractured and the brain may be affected. Don’t pack anything into the ear or try to stop this type of bleeding with pressure inside the canal.
Ear Canal Growths and Cancer
Rarely, a growth in the ear canal causes bleeding. Squamous cell carcinoma is the most common type of cancer affecting both the outer and inner ear. On the outer ear, it appears as a scaly, pink lump that bleeds easily or oozes like a sore that won’t heal. About 5 in every 100 skin cancers start on the ear, though cancer inside the ear canal is extremely rare.
Inner ear tumors can produce clear or bloody discharge along with hearing loss, ringing, facial weakness on the affected side, pain, and dizziness. A sore on the outer ear that hasn’t healed within four weeks is worth getting checked.
What to Do When Your Ear Bleeds
For visible bleeding from the outer ear or canal, apply gentle direct pressure with a clean cloth until the bleeding stops. You can cover the area with a sterile dressing shaped to the ear’s contour and tape it loosely in place. A cold compress over the dressing helps reduce pain and swelling.
Don’t insert anything into the ear canal to stop bleeding or clean it out. If the bleeding followed a head injury, don’t try to block the flow. Let it drain while keeping the person still and getting emergency help. The same applies if bleeding comes with severe dizziness, sudden hearing loss, facial numbness, or confusion. These combinations point to something deeper than a surface scratch.
For minor bleeding after a cotton swab scratch, the canal will typically heal on its own within a few days. If discharge continues, turns foul-smelling, or comes with fever, an infection has likely set in and needs treatment.