Conductive hearing loss happens when sound can’t travel properly through the outer or middle ear to reach the inner ear. The good news: it’s one of the most treatable forms of hearing loss. Treatment depends entirely on what’s blocking or disrupting the sound path, and many causes can be fully reversed with the right approach.
Why the Cause Matters for Treatment
A conductive hearing loss can originate from any point between the outer ear and the tiny bones of the middle ear. The most common culprits are earwax buildup, middle ear infections, fluid behind the eardrum, eardrum perforations, and a bone-hardening condition called otosclerosis. Some are fixed in minutes. Others require surgery. A hearing test called audiometry identifies the problem by measuring the “air-bone gap,” the difference between how well sound reaches your inner ear through the air versus through bone vibration. A gap of 10 decibels or more at key frequencies signals a conductive component.
Earwax Removal
Impacted earwax is the simplest cause to fix and one of the most common. Studies of children found that 9% had impacted wax, and nearly one in five of those children had measurable hearing loss because of it. Adults are equally susceptible, especially those who use hearing aids, earbuds, or cotton swabs that push wax deeper into the canal.
Professional removal is the safest route. The two main methods are electronic water irrigation and microsuction. Irrigation uses a device that sends a controlled, low-pressure stream of water into the ear canal to flush wax out. Microsuction removes wax under direct visualization using gentle mechanical suction and is the preferred method in specialist settings. Some people find irrigation more comfortable, while others prefer microsuction because it’s less messy. Complication rates for irrigation are low, roughly 1 in 1,000 cases results in a specialist referral for issues like a perforated eardrum. Irrigation isn’t suitable if you have an existing eardrum perforation, an ear infection, or grommets (ear tubes) in place.
Manual water-filled syringes, once standard in clinics, are no longer recommended in the UK due to the risk of hearing damage. At home, over-the-counter softening drops (often olive oil or sodium bicarbonate based) can help mild buildup, but they won’t clear a full blockage on their own.
Treating Ear Infections and Fluid Buildup
Middle ear infections (otitis media) and fluid behind the eardrum, sometimes called “glue ear,” are the most common cause of acquired hearing loss in children. In low- and middle-income countries, hearing loss from otitis media affects up to 26% of children. Acute infections are typically treated with antibiotics when bacterial, and the hearing loss resolves as the infection clears.
Fluid that lingers for weeks or months after an infection is a different challenge. Pressure equalization (PE) tubes, small cylinders placed through the eardrum, let fluid drain and air circulate in the middle ear. They work well as a temporary measure but don’t address the underlying issue. Potential downsides include infection, discharge, the need for dry-ear precautions while swimming, and occasional scarring or permanent perforation of the eardrum.
For chronic eustachian tube dysfunction, where the tube connecting the middle ear to the back of the throat stays blocked, a newer procedure called balloon eustachian tuboplasty offers a more lasting fix. A small balloon is inflated inside the eustachian tube to widen it, then removed. In a randomized controlled trial, patients who received balloon dilation showed significantly greater symptom improvement than those who continued with medication alone, and those improvements held steady through 12 months of follow-up. The procedure had a 100% technical success rate, no reported complications, and 72% of cases were completed in the office under local anesthesia.
Repairing a Perforated Eardrum
A hole in the eardrum, whether from infection, trauma, or pressure changes like deep-water diving, reduces the membrane’s ability to vibrate and transmit sound. Small perforations sometimes heal on their own within a few weeks. Larger or persistent holes require tympanoplasty, a surgical repair using a graft of your own tissue to patch the eardrum.
Recovery from tympanoplasty takes about 10 days to two weeks before discomfort and side effects subside. During that time, expect mild ear pain, slight bloody discharge, and a crackling or popping sensation. Hearing typically remains muffled for up to six weeks, with full hearing restoration taking three months or more. You’ll need to avoid blowing your nose for at least three weeks and skip flying and swimming for about a month. Children can usually return to school within three to five days.
Surgery for Otosclerosis
Otosclerosis is a condition where abnormal bone growth gradually locks the stapes, the smallest bone in the middle ear, in place. It’s twice as common in women, typically appears in early adulthood, and causes bilateral hearing loss in up to 80% of cases. The hearing loss develops slowly, which is why some people don’t notice it for years.
The standard treatment is a stapedotomy (or stapedectomy), where the fixed stapes bone is partially or fully replaced with a tiny prosthesis that restores vibration. Results are strong: in published studies, about 94% of patients see hearing improvement, and roughly 61% achieve complete closure of the air-bone gap to within 10 dB, essentially normal mechanical sound transmission. Around 85% achieve closure to within 20 dB, which represents a meaningful, noticeable improvement in everyday hearing. The procedure is typically done under local or general anesthesia and takes about an hour.
Rebuilding the Middle Ear Bones
When the chain of three tiny bones in the middle ear is broken or eroded, whether from head trauma, chronic infection, or cholesteatoma (an abnormal skin growth in the middle ear), a procedure called ossiculoplasty can restore the connection. The surgeon replaces the damaged section with a prosthesis to re-establish the path sound travels from the eardrum to the inner ear.
The type of prosthesis depends on what’s missing. If the top part of the stapes is still intact, a partial prosthesis (called a PORP) bridges the gap between the stapes and the eardrum or the malleus bone. If only the stapes footplate remains, a total prosthesis (TORP) spans the entire distance. In some cases, the patient’s own incus bone can be reshaped and repositioned to fill the gap. The specific anatomy found during surgery determines which approach works best.
Bone Conduction Hearing Devices
When surgery isn’t an option or hasn’t fully restored hearing, bone conduction devices offer an alternative. A bone-anchored hearing aid (BAHA) bypasses the outer and middle ear entirely, transmitting sound vibrations through the skull bone directly to the inner ear. It’s most commonly used in people with conductive hearing loss from ear canal malformations (aural atresia), surgical cavities in the mastoid bone, or middle ear abnormalities that can’t be surgically corrected. It’s also an option for people who can’t wear conventional hearing aids comfortably.
The device attaches to a small titanium implant placed in the bone behind the ear. Some newer versions use a magnet under the skin rather than a protruding post. Because the inner ear itself is healthy in conductive hearing loss, the sound quality from bone conduction tends to be quite good.
What Happens Without Treatment
Simple causes like earwax and fluid buildup have excellent outcomes when addressed, but leaving them untreated carries real risks. Chronic middle ear infections can erode the tiny bones of the middle ear, turning a temporary, reversible problem into one that requires surgery. Untreated infections also raise the risk of cholesteatoma, a destructive growth that expands over time and can damage surrounding structures. In children, even mild conductive hearing loss during critical developmental years can delay speech and language skills. Otosclerosis, left alone, progresses and the hearing loss deepens as bone fixation worsens. In most cases, earlier treatment means simpler treatment and a better hearing outcome.