Understanding Cholesteatoma: A Complete Patient Guide

Cholesteatoma is an abnormal collection of skin cells that grows inside the ear, usually behind the eardrum. It is not a cancer, but it can gradually damage hearing and nearby structures if it is not diagnosed and treated by an ear specialist.

What cholesteatoma is and why it matters

Cholesteatoma is an abnormal buildup of skin cells in the middle ear, the space behind the eardrum. Although the name may sound like a tumor, it is not cancer. Instead, it is a growth made of trapped skin and debris that can expand over time and affect delicate ear structures.

This condition matters because the middle ear contains tiny bones that help transmit sound, along with important nearby structures linked to balance, facial movement, and the inner ear. As cholesteatoma grows, it can cause persistent infection, erode bone, and interfere with hearing. In more advanced cases, it may lead to serious complications if left untreated.

Cholesteatoma can occur in children or adults. Some people are born with a rare congenital form, but most cases develop later, often after long-standing ear problems. Because symptoms may begin gradually, people sometimes mistake them for a routine ear infection or chronic drainage, which can delay diagnosis.

How cholesteatoma develops

The most common cholesteatoma forms when the eardrum is pulled inward, creating a pocket where dead skin cells collect. This often happens when the Eustachian tube, which helps equalize pressure between the middle ear and the back of the nose, does not work well. Over time, the trapped skin can build into a larger mass.

Repeated infections and poor ventilation of the middle ear can make this process more likely. In some cases, cholesteatoma also develops after a hole in the eardrum, ear surgery, or trauma. A congenital cholesteatoma forms from skin cells that remain trapped in the ear during early development before birth.

As the growth enlarges, it may hold moisture and bacteria, which can lead to chronic infection and drainage. It can also slowly wear away nearby bone. This is why cholesteatoma is more than a simple ear infection and usually needs evaluation by an ear, nose, and throat specialist. People with ongoing ear infections may also be evaluated for related problems such as chronic middle ear infection.

Symptoms and possible complications

Symptoms vary depending on the size and location of the cholesteatoma. A common early sign is persistent or recurring ear discharge, especially if it has an unpleasant odor. Many people also notice hearing loss in one ear, a feeling of fullness or pressure, or repeated ear infections that do not fully clear.

Some people develop ear pain, though cholesteatoma is not always painful. Dizziness, balance problems, ringing in the ear, or headaches can also occur. In children, caregivers may notice reduced hearing, inattentiveness, speech concerns, or frequent ear drainage.

If the cholesteatoma continues to grow, complications become more likely. These can include damage to the small hearing bones, worsening hearing loss, spread of infection, dizziness from inner ear involvement, and rarely weakness of the facial muscles on the affected side. In uncommon but important situations, untreated disease can lead to infection involving nearby tissues. These risks are why ongoing ear discharge or hearing changes should not be ignored.

• Persistent or foul-smelling ear drainage
• Hearing loss, usually in one ear
• Ear fullness or pressure
• Repeated ear infections
• Dizziness or poor balance
• Rarely, facial weakness or severe headache

Causes and risk factors

Cholesteatoma is strongly linked to problems that affect middle ear pressure and drainage. Eustachian tube dysfunction is one of the most common underlying factors. When the tube does not open properly, negative pressure can pull the eardrum inward and create the retraction pocket where skin collects.

Several conditions can increase this risk, including repeated ear infections, chronic inflammation, allergies that contribute to nasal and ear problems, cleft palate, and a history of ear surgery or a perforated eardrum. Children may be more vulnerable because ear infections and Eustachian tube problems are more common early in life.

Risk is also higher in people with long-standing middle ear disease or structural ear problems. While cholesteatoma itself is not contagious, infections that accompany it can cause ongoing symptoms. A person with repeated ear symptoms may also need assessment for associated conditions such as hearing loss or chronic eardrum problems.

How doctors diagnose cholesteatoma

Diagnosis begins with a medical history and a careful ear examination. Using an otoscope or microscope, an ENT specialist looks for clues such as a retraction pocket in the eardrum, trapped debris, drainage, or a visible mass behind the eardrum. Sometimes the appearance is clear, but in other cases inflammation and discharge can make the diagnosis less straightforward.

Hearing tests are usually an important part of evaluation because they help show whether sound conduction through the middle ear has been affected. Audiometry can measure the degree and type of hearing loss and provide a baseline for treatment planning and follow-up.

Imaging may also be recommended, especially when surgery is being considered or when the doctor needs to define how far the disease has spread. A CT scan of the temporal bone can show bone erosion and the extent of disease. In selected cases, MRI may help distinguish cholesteatoma from scar tissue or evaluate complications. Depending on symptoms and exam findings, the care team may also discuss hearing assessment with audiology and imaging as part of a complete workup.

Treatment options and what recovery may involve

Cholesteatoma usually does not resolve on its own. Initial treatment may include cleaning the ear, treating active infection, and reducing inflammation so the ear can be examined more clearly. Ear drops or other medicines may help control infection, but they do not remove the cholesteatoma itself.

For most patients, definitive treatment is surgery. The goal is to remove the cholesteatoma completely, create a safe and dry ear, and preserve or improve hearing when possible. The exact operation depends on the size of the growth, whether nearby bone has been affected, and the condition of the eardrum and hearing bones. Reconstructive steps may be performed during the same procedure or in a later stage. In appropriate cases, this may involve ear surgery or eardrum repair and reconstruction.

Recovery and follow-up are an important part of care. Some people need regular checkups for ear cleaning and examination, while others may need imaging or a planned second-look procedure to confirm that no disease remains. Because cholesteatoma can recur, even after successful treatment, ongoing monitoring is often recommended. If hearing remains affected, options such as hearing rehabilitation may be discussed in selected patients, depending on the pattern and severity of hearing loss.

Daily care, follow-up, and protecting ear health

Self-care cannot remove a cholesteatoma, but it can support treatment and help reduce irritation or infection. Patients are often advised to keep the ear dry, avoid putting cotton swabs or other objects into the ear canal, and use medicines exactly as prescribed. If a doctor has recommended ear precautions after surgery, following them closely can support healing.

Follow-up visits matter because a cholesteatoma may return without causing clear symptoms at first. Repeat ear examinations, hearing tests, and occasionally imaging help the specialist check for recurrence and monitor hearing over time. Parents of children treated for cholesteatoma should continue scheduled follow-up even if the child seems well.

General measures that support ear and upper airway health may also help, such as managing allergies, treating nasal congestion when advised by a doctor, and seeking care for repeated ear infections. Near the end of the care pathway, patients who need specialist assessment may choose centers with multidisciplinary ENT and audiology services. Acibadem International’s multidisciplinary specialists in JCI-accredited hospitals diagnose and treat cholesteatoma for international patients.

When to seek medical care

Medical evaluation is appropriate if a person has ongoing ear discharge, repeated ear infections, new hearing loss, or persistent ear fullness on one side. These symptoms do not always mean cholesteatoma, but they do warrant examination, especially if they continue despite standard treatment.

Prompt care is especially important if symptoms are worsening or accompanied by dizziness, severe pain, marked swelling around the ear, facial weakness, or severe headache. These signs do not always indicate a dangerous complication, but they should be assessed without delay.

After treatment, patients should contact their doctor if drainage returns, hearing changes suddenly, fever develops, or post-surgical instructions are difficult to follow. Early review can help address infection, recurrence, or healing problems before they become more serious.

Frequently asked questions

Is cholesteatoma cancer?

No. Cholesteatoma is not cancer and does not behave like a malignant tumor. It is a growth made of skin cells and debris, but it can still damage nearby ear structures if it keeps expanding.

Can cholesteatoma go away without surgery?

In most cases, no. Medicines may control infection or inflammation for a time, but they do not remove the trapped skin growth itself. Many patients ultimately need surgery to clear the disease and protect the ear.

What does cholesteatoma feel like?

Some people feel fullness, pressure, or reduced hearing in one ear. Others notice chronic drainage, repeated infections, or a bad smell from the ear. Pain may occur, but cholesteatoma is not always painful.

Can cholesteatoma cause hearing loss?

Yes. It often causes conductive hearing loss by affecting the eardrum or the tiny hearing bones in the middle ear. If the disease becomes more advanced, hearing loss may be greater and can sometimes involve inner ear structures as well.

How is cholesteatoma diagnosed?

Doctors diagnose it with an ear examination, a review of symptoms, and usually a hearing test. In many cases, imaging such as a CT scan is used to understand the extent of the disease and help plan treatment.

Can cholesteatoma come back after treatment?

Yes, it can recur even after careful treatment. That is why follow-up visits are important, especially in children and in patients with more extensive disease. Ongoing monitoring helps doctors detect recurrence early.

References

• American Academy of Otolaryngology–Head and Neck Surgery
• National Institute on Deafness and Other Communication Disorders
• Merck Manual
• Mayo Clinic
• National Health Service

This article is for general information only and is not a substitute for professional medical advice. Please consult a qualified doctor about your individual situation.