Bleeding from the ear usually means something has damaged the skin of the ear canal or the eardrum itself. Most causes are minor, like a scratch from a cotton swab or pressure changes during a flight. A few causes are serious and need immediate medical attention, particularly after a head injury. Where the blood is coming from and what happened right before it started are the two biggest clues to what’s going on.
Scratches and Injuries to the Ear Canal
The most common reason for a bleeding ear is a minor injury to the ear canal, the short tube that runs from the outside of your ear to the eardrum. The skin lining this canal is thin and tears easily. Cotton swabs are the most frequent culprit. A study published in the journal Pediatrics found that cotton swab injuries sent children to the emergency room at least 35 times per day in the United States over a 20-year period. Adults injure their ear canals the same way, along with fingernails, hairpins, earbuds, and other objects pushed too far in.
These injuries typically produce a small amount of bright red blood, sometimes mixed with earwax. The bleeding usually stops on its own within minutes to hours. The canal heals quickly as long as you leave it alone.
Ruptured Eardrum
A ruptured (perforated) eardrum is a tear in the thin membrane separating your ear canal from the middle ear. It causes a distinct set of symptoms: sudden sharp pain that may fade quickly, fluid draining from the ear that can contain blood or pus, muffled hearing, and sometimes ringing or buzzing in the affected ear.
Several things can rupture an eardrum. A cotton swab or other object pushed too deep is one. Severe ear infections that build up pressure behind the eardrum are another. A sudden loud blast, a slap to the side of the head, or rapid pressure changes (like during diving or flying) can also do it. In each case, the mechanism is the same: the membrane is either punctured or stretched past its breaking point.
Most ruptured eardrums heal on their own within a few weeks, though some take a few months. During that time, you need to keep water out of the ear and avoid blowing your nose forcefully. A small number of perforations require surgical repair, particularly larger tears or those that don’t close after several months.
Ear Infections
Middle ear infections, especially in children, can cause enough pressure buildup to rupture the eardrum. When this happens, you may notice fluid, pus, or blood draining from the ear. Paradoxically, the pain often improves once the eardrum tears because the pressure is released.
Most infection-related eardrum tears heal within about 72 hours. The underlying infection often clears on its own, though doctors sometimes prescribe antibiotics depending on the severity and the child’s age. Blood or pus draining from a child’s ear during an infection is a reason to call your pediatrician, even if the pain seems to have improved.
Pressure Changes (Barotrauma)
Your middle ear is an air-filled space connected to the back of your throat by a narrow tube called the eustachian tube. When outside pressure changes rapidly, like during airplane descent or scuba diving, air needs to move through that tube to equalize. If the tube is blocked by congestion, allergies, or swelling from a cold, the pressure difference can bruise or rupture the eardrum.
Divers and flight medicine specialists grade barotrauma on a scale. Mild cases (grade 1) involve redness and fluid trapping in the middle ear. More severe cases (grade 2) involve visible bleeding within the eardrum or middle ear space, or a full perforation. You’ll feel pain and pressure during the event, often with muffled hearing afterward. If you’re congested before a flight or dive, that’s the biggest risk factor. Decongestants taken beforehand can help keep the eustachian tube open, and techniques like swallowing, yawning, or gently blowing against pinched nostrils can help equalize pressure during descent.
Foreign Objects in the Ear
Children are particularly prone to putting small objects in their ears: beads, popcorn kernels, small toy parts, bits of foam, and even insects that crawl in on their own. Button batteries are the most dangerous foreign body because they can cause chemical burns within hours. Any of these objects can scratch or cut the ear canal, producing bleeding.
If you suspect something is lodged in your or your child’s ear, resist the urge to fish it out with tweezers or a cotton swab. Probing risks pushing the object deeper and damaging the eardrum. A doctor can remove it safely with proper tools and lighting.
Ear Tumors and Growths
Unexplained, recurring bleeding from the ear without an obvious injury or infection is less common but worth knowing about. Roughly 6% to 10% of skin cancers develop on the outer ear, including basal cell carcinoma, squamous cell carcinoma, and melanoma. Cancers of the middle or inner ear are much rarer. Warning signs include a persistent bump on the outer ear, bleeding or discharge that keeps coming back, ear pain, hearing loss, facial weakness, or swollen lymph nodes near the ear. Any new, non-healing sore or lump on the ear that bleeds deserves a medical evaluation.
When Ear Bleeding Signals a Head Injury
Bleeding from the ear after a blow to the head, a fall, or any significant trauma is the one scenario that always warrants emergency care. A fracture at the base of the skull can tear blood vessels and membranes surrounding the brain, allowing blood or cerebrospinal fluid (the clear liquid that cushions the brain) to leak through the ear.
Cerebrospinal fluid leakage happens in about 21% of people with fractures of the temporal bone, the skull bone that houses the ear structures. The fluid is typically clear and watery, but it can mix with blood, making it look pink or light red. You might also notice clear, watery drainage from the nose, hearing loss on one side, or dizziness. If someone has bleeding from the ear after a head injury, do not block the drainage or insert anything into the ear. Keep them still and get emergency help immediately.
What Not to Do When Your Ear Bleeds
Regardless of the cause, a few rules apply to any bleeding ear:
- Don’t block the drainage. Plugging the ear with cotton or gauze can trap blood or fluid and create a breeding ground for infection. If drainage is heavy, hold a clean cloth loosely against the outer ear to catch it.
- Don’t put any liquid in the ear. No eardrops, water, hydrogen peroxide, or oil unless a doctor has specifically told you to. If the eardrum is ruptured, liquids can enter the middle ear and cause infection or pain.
- Don’t clean inside the canal. Leave the ear canal alone. No swabs, no pins, no fingers.
- Don’t try to remove a foreign object yourself. You risk pushing it deeper or puncturing the eardrum.
What Happens at the Doctor’s Office
A doctor examines a bleeding ear with an otoscope, a handheld instrument with a light and a magnifying lens that makes ear structures appear about 75% larger than they are to the naked eye. This lets them see whether the bleeding is coming from a canal scratch, a ruptured eardrum, or something deeper. In some cases, they’ll use pneumatic otoscopy, which pushes a small puff of air against the eardrum to check whether it moves normally. A eardrum that doesn’t move well may have fluid behind it or a perforation.
If hearing loss is a concern, you may have hearing tests. An audiogram measures how well you detect soft sounds and different tones. Tympanometry tests how well the eardrum vibrates in response to pressure changes. Together, these help determine whether any damage is affecting your hearing and how severe it is. Ear, nose, and throat specialists often use a microscope for a closer look, especially if the source of bleeding isn’t obvious on initial exam.