Can Chemotherapy Cause Hearing Loss?

Many people are surprised to learn that some cancer treatments can affect hearing. If you or a loved one is undergoing chemotherapy, it is natural to ask: can chemotherapy cause hearing loss? While not everyone on chemo will develop hearing problems, certain drugs are known to increase the risk of changes in hearing, ringing in the ears, and balance issues.

Understanding these risks can help you and your cancer care team monitor your hearing, catch problems early, and protect your long-term hearing health as much as possible.

How Chemotherapy Affects Hearing

Chemotherapy drugs are designed to target and destroy fast-growing cancer cells. Unfortunately, they can also affect healthy cells, including the delicate hair cells in the inner ear that are responsible for hearing and balance.

When these inner ear structures are damaged, it can lead to:

• Hearing loss (often starting with higher pitched sounds)
• Tinnitus (ringing, buzzing, or hissing in the ears)
• Balance problems, dizziness, or unsteadiness

Hearing changes may appear during treatment or develop gradually after chemotherapy is finished. In some cases, the damage can be long-lasting or permanent.

Chemo-Induced Hearing Loss and Platinum-Based Drugs

Not all chemotherapy drugs affect hearing in the same way. One of the better-known causes of chemo-induced hearing loss is a group of medications called platinum-based chemotherapies. These include drugs commonly used to treat cancers of the lungs, head and neck, bladder, ovaries, and testicles.

Platinum-Based Chemotherapy and Hearing Loss

Platinum-based chemotherapy hearing loss is most strongly associated with medications such as cisplatin and, to a lesser degree, carboplatin and oxaliplatin. These drugs can be highly effective against cancer, but they also have what doctors call “ototoxic” (ear-damaging) potential.

The risk of changes in hearing often increases with:

• Higher total doses over time
• More treatment cycles
• Existing hearing problems before treatment
• Other factors like noise exposure or certain medications that also affect hearing

Cisplatin Hearing Loss Risk

Cisplatin is one of the most widely used platinum drugs, and cisplatin hearing loss risk is a well-recognized concern in oncology. Hearing changes with cisplatin often begin with difficulty hearing high-pitched sounds, such as birds chirping, beeps, or certain consonants in speech. Over time, this can make it harder to follow conversations, especially in noisy places.

Your cancer care team will weigh the benefits of cisplatin in treating your specific cancer against its potential side effects, including effects on hearing. In many cases, these medicines remain the best available option, but close monitoring can help manage risks.

Common Symptoms: Tinnitus, Hearing Changes, and Balance

Chemotherapy can affect more than just how well you hear. The inner ear also helps control balance, so damage there can lead to a range of symptoms.

Tinnitus and Hearing Changes

Chemotherapy tinnitus and balance problems are frequently reported side effects when the inner ear is affected. People may notice:

• Ringing, buzzing, hissing, or roaring sounds in one or both ears
• Sounds seeming muffled or less clear
• Needing to turn up the TV or ask people to repeat themselves
• Trouble understanding speech in group settings or noisy rooms

Tinnitus may be constant or come and go. It can be more noticeable in quiet environments, such as at night when trying to fall asleep.

Balance and Dizziness

Because the inner ear is part of your body’s balance system, chemotherapy-related ear damage can also cause:

• Feeling lightheaded or dizzy
• Unsteadiness while walking
• Occasional spinning sensations (vertigo)

These symptoms can increase the risk of falls, which is especially concerning if you are already feeling weak or fatigued from treatment.

Monitoring Hearing During Chemotherapy

Monitoring hearing during chemotherapy gives you and your care team a better chance to detect changes early. Early detection can sometimes allow adjustments to your treatment plan and help you get support for hearing and balance issues sooner.

Baseline Hearing Test

Before starting treatment with drugs known to affect hearing, your oncologist may recommend a baseline hearing test (audiogram) with a hearing specialist. This test measures how well you hear different sounds and pitches, and it serves as a reference point for future comparisons.

Follow-Up Hearing Checks

Depending on your medications and overall health, you may have additional hearing tests:

• During chemotherapy, especially before new cycles
• At the end of treatment
• In the months or years after treatment to monitor any delayed changes

If you notice sudden or significant changes in your hearing or balance between scheduled visits, contact your oncology team and ask about an urgent hearing evaluation.

When to See a Hearing Specialist After Chemotherapy

Some hearing changes are subtle at first, so it can be easy to dismiss them as “just getting older” or part of treatment fatigue. However, talking with a hearing specialist after chemotherapy can be important if you experience any of the following:

• Persistent ringing, buzzing, or hissing in your ears
• Needing to turn up the TV or phone volume more than before
• Struggling to follow conversations, especially in groups
• Frequently asking others to repeat themselves
• Feeling off balance, unsteady, or dizzy

An audiologist or other hearing professional can perform a detailed assessment, compare results with any baseline testing, and explain your options for managing symptoms and protecting the hearing you have.

Options for Managing Chemo-Related Hearing Problems

While damage to inner ear structures is often not reversible, many people find relief and better communication with the right support and technology.

Hearing Aids and Assistive Devices

Hearing-aids for chemo hearing loss can make a significant difference in daily life. Modern devices are discreet and can be adjusted to your specific pattern of hearing loss, helping you:

• Hear speech more clearly
• Reduce listening effort and fatigue
• Stay engaged in conversations with family, friends, and coworkers

In addition to standard hearing aids, other tools may help, such as TV or phone amplifiers, remote microphones, and smartphone-based apps designed to improve listening in noisy environments.

Tinnitus and Balance Support

For tinnitus, a hearing specialist may suggest:

• Sound therapy or noise generators to make ringing less noticeable
• Hearing aids with built-in tinnitus masking features
• Relaxation or coping strategies that can reduce stress related to tinnitus

For balance concerns, your doctor may recommend:

• Physical therapy or vestibular rehabilitation exercises
• Home safety changes to reduce fall risks
• Reviewing medications that could be contributing to dizziness

Protecting Your Hearing Before, During, and After Chemo

While you cannot always prevent chemo-induced hearing loss, there are practical steps you can take to lower your overall risk and protect your hearing as much as possible.

• Talk openly with your care team: Let your oncologist know if you already have hearing issues or noise exposure at work or home.
• Ask about hearing monitoring: Discuss baseline and follow-up hearing tests, especially if you will receive platinum-based drugs.
• Report symptoms early: Tell your doctor right away if you notice tinnitus, new hearing difficulties, or balance changes.
• Limit loud noise exposure: Avoid loud concerts, power tools, and other high-volume sounds; use hearing protection when needed.
• Review other medications: Ask your healthcare team if any other medicines you take could also affect hearing.

Living Well After Treatment

Wondering “can chemotherapy cause hearing loss” is common, and feeling worried about this possible side effect is understandable. The important thing to remember is that you are not alone, and support is available.

If you have finished chemotherapy and are noticing changes in your hearing, tinnitus, or balance, consider scheduling a comprehensive hearing evaluation. Early attention to these issues can help you stay connected to the people and activities that matter most, support your safety and independence, and improve your overall quality of life after cancer treatment.