If you've been following our tinnitus series, you already know the basics: that persistent ringing, buzzing, or hissing that affects millions of people worldwide. Globally, tinnitus affects an estimated 14.4% of adults, with around 10% experiencing it chronically.3 This week, we're getting specific. Understanding what's causing your tinnitus is the most important step toward managing it, because some causes can be addressed directly while others require longer-term strategies.
Let's walk through the seven most common culprits.
1. Noise-Induced Hearing Loss
This is the leading cause of tinnitus worldwide. Prolonged exposure to loud sounds, whether from years of working in a noisy environment, attending concerts, or earbuds turned up too high, can damage the delicate hair cells in the cochlea. Once these cells are destroyed, they do not regenerate. In the United States, nearly one in four adults shows signs of noise-induced hearing loss,1 and among noise-exposed workers, tinnitus prevalence is around 15%, three times the rate seen in unexposed workers.2
The tinnitus that results from noise damage is the brain's attempt to compensate for the missing auditory input. It essentially "fills in" the silence with phantom sounds.
Reversibility: In most cases, the underlying hair cell damage is permanent. However, the perception of tinnitus can be significantly reduced with sound therapy and hearing support. Hearing devices work by amplifying environmental sounds to comfortable levels, reducing the contrast that makes tinnitus most noticeable. Many users report a significant reduction in perceived tinnitus intensity when ambient sound is restored.
2. Aging (Presbycusis)
Age-related hearing loss, known as presbycusis, is one of the most common health conditions affecting older adults. In the United States, an estimated one in three people over age 65, and half of those over 85, experience some degree of hearing loss.4 Among older adults with age-related hearing loss, studies find that those with hearing impairment are more than twice as likely to have tinnitus.5
Because tinnitus and age-related hearing loss often occur together, audiologists often treat them as a single condition rather than two separate issues.
Reversibility: The hearing changes that come with aging are not reversible. However, tinnitus caused by age-related hearing loss responds well to hearing aids and sound therapy approaches.
3. Earwax Buildup
One of the most commonly overlooked and most treatable causes of tinnitus is a simple blockage. When earwax accumulates and hardens in the ear canal, it can press against the eardrum and interfere with normal sound transmission, triggering or worsening tinnitus.6 Many people are surprised to learn their tinnitus disappears entirely after a professional ear cleaning.
Reversibility: Fully reversible. If earwax is the cause, professional removal typically resolves the tinnitus quickly and completely.7
Tip: Avoid using cotton swabs to clean your ears; this often pushes wax deeper. If you suspect a blockage, visit your GP or audiologist for safe removal.
4. Medications (Ototoxic Drugs)
Certain medications have the potential to damage the inner ear or auditory nerve, a property known as ototoxicity. More than 260 medications have been reported to cause tinnitus as a side effect,8 including some antibiotics (particularly aminoglycosides), certain chemotherapy drugs, high doses of aspirin, loop diuretics, and some antimalarial medications. If you notice tinnitus starting or worsening shortly after beginning a new medication, this is worth raising with your prescribing doctor promptly.
Reversibility: Potentially reversible, depending on the drug and dosage. In many cases, particularly aspirin, tinnitus resolves after stopping the offending drug. Effects from aminoglycoside antibiotics or chemotherapeutics can be permanent, making early action critical.9
Tip: Never stop a prescribed medication without consulting your doctor first, even if you suspect it's causing tinnitus. There may be a safer alternative.
5. Ear Infections
Both middle ear infections (otitis media) and outer ear infections (otitis externa) can cause temporary tinnitus. The inflammation and fluid buildup associated with infections alter sound transmission and can trigger ringing or a sensation of fullness in the ear. Research confirms that otitis media is a statistically significant risk factor for tinnitus.10
This form of tinnitus is often accompanied by pain, pressure, or muffled hearing, symptoms that typically resolve as the infection clears.
Reversibility: Usually fully reversible. Once the infection is treated and inflammation subsides, tinnitus tends to disappear alongside the other symptoms.7
6. TMJ Disorders
The temporomandibular joint (TMJ) connecting your jaw to your skull sits very close to the ear canal. Dysfunction in this joint, caused by teeth grinding, jaw clenching, misalignment, or injury, can directly affect the middle ear and trigger what is known as somatic tinnitus. TMJ disorder has been identified as a confirmed independent risk factor for tinnitus in systematic research.10
What makes TMJ-related tinnitus distinctive is that it can sometimes change in pitch or intensity depending on jaw position or neck movements.
Reversibility: Potentially reversible. With appropriate treatment, which may include a dental mouth guard, physical therapy, or jaw alignment work, many patients see substantial improvement or complete resolution.9
7. Stress and Anxiety
Stress doesn't cause structural damage to the ear, but it has a powerful effect on how the brain processes auditory signals. Chronic stress and anxiety increase nervous system sensitivity, which can amplify the perception of tinnitus. This relationship goes both ways: tinnitus can cause anxiety, and anxiety can worsen tinnitus, creating a cycle that's important to break. Studies have confirmed depression and psychological distress as significant associated factors in tinnitus experience.10
Reversibility: The tinnitus itself may not disappear, but its perceived severity can improve dramatically with stress management. Cognitive Behavioural Therapy (CBT) is currently the best-evidenced psychological treatment for tinnitus, with Cochrane-reviewed data supporting its efficacy in reducing tinnitus distress.12
The most important step is getting a proper diagnosis. Tinnitus is a symptom, not a condition on its own, and treating the underlying cause is always the most effective approach where one exists.
For causes that aren't fully reversible, the good news is that there's still a great deal that can be done. Sound therapy, hearing devices, and cognitive approaches have helped millions of people manage tinnitus to the point where it no longer disrupts daily life. About 80% of hearing loss cases can be treated with hearing aids, yet fewer than one in four people who could benefit actually use them.13
Hearing devices, in particular, are increasingly recognised as one of the most effective tools for tinnitus management, not just because they improve hearing, but because restoring natural sound perception reduces the brain's tendency to generate phantom sounds in the first place.
References
1. CDC Vital Signs: Noise-Induced Hearing Loss Among Adults — United States 2011–2012. Morbidity and Mortality Weekly Report, 66(5), 2017. https://www.cdc.gov/mmwr/volumes/66/wr/mm6605e3.htm
2. WHO/PMC: Noise Induced Hearing Loss and Tinnitus — New Research Developments. PMC7602100, 2020. https://pmc.ncbi.nlm.nih.gov/articles/PMC7602100/
3. NIDCD Quick Statistics About Hearing. National Institute on Deafness and Other Communication Disorders. https://www.nidcd.nih.gov/health/statistics/quick-statistics-hearing
4. MedlinePlus Genetics: Age-related hearing loss (Presbycusis). U.S. National Library of Medicine. https://medlineplus.gov/genetics/condition/age-related-hearing-loss/
5. Oosterloo BC et al. Prevalence of Tinnitus in an Aging Population and Its Relation to Age and Hearing Loss. Otolaryngol Head Neck Surg. 2021;164(4):859–868. https://pmc.ncbi.nlm.nih.gov/articles/PMC8027937/
6. WHO. Deafness and Hearing Loss — Tinnitus: Questions and Answers. World Health Organization. https://www.who.int/news-room/questions-and-answers/item/deafness-and-hearing-loss--tinnitus
7. NIDCD. What is Tinnitus? — Causes and Treatment. https://www.nidcd.nih.gov/health/tinnitus
8. Tinnitus — StatPearls, NCBI Bookshelf. National Library of Medicine. https://www.ncbi.nlm.nih.gov/books/NBK430809/
9. Tunkel DE et al. Clinical Practice Guideline: Tinnitus. Otolaryngol Head Neck Surg. 2014;151(2 Suppl):S1–S40. https://effectivehealthcare.ahrq.gov/products/tinnitus/research-protocol
10. Biswas R et al. Low Evidence for Tinnitus Risk Factors: A Systematic Review and Meta-analysis. J Assoc Res Otolaryngol. 2023. https://pmc.ncbi.nlm.nih.gov/articles/PMC9971395/
11. Wikipedia. Tinnitus. Citing Cochrane and clinical guidelines. https://en.wikipedia.org/wiki/Tinnitus
12. Cima RFF et al. Tinnitus Guidelines and Their Evidence Base. PMC10178961, 2023. https://pmc.ncbi.nlm.nih.gov/articles/PMC10178961/
13. Hearing Health Foundation. Hearing Loss & Tinnitus Statistics. https://hearinghealthfoundation.org/hearing-loss-tinnitus-statistics
