Hearing ringing, buzzing, humming, or high-pitched tones when no external sound is present can be unsettling, especially when you cannot identify what caused it. If you have also been diagnosed with a thyroid disorder—or have noticed symptoms such as unusual fatigue, a racing heartbeat, unexplained weight changes, or temperature sensitivity—it is natural to wonder whether the two problems are connected.
Thyroid disorders and tinnitus may be associated, but the relationship is not straightforward. Both underactive thyroid function (hypothyroidism) and overactive thyroid function (hyperthyroidism) can affect processes relevant to hearing and the cardiovascular system. Some people with thyroid disease report tinnitus, and certain thyroid-related conditions may contribute to symptoms that make tinnitus more noticeable.
However, tinnitus is common and has many possible causes. Having a thyroid disorder does not automatically mean it caused your tinnitus, and finding a thyroid abnormality does not rule out an independent ear or hearing problem.
The good news is that you do not need to solve the mystery alone. Understanding what is known, what remains uncertain, and which evaluations are useful can help you take sensible next steps without assuming the worst.
Can thyroid problems cause tinnitus?
What the medical evidence actually tells us
Thyroid hormones help regulate metabolism, energy use, circulation, and the normal functioning of many tissues. The auditory system—the structures responsible for hearing—also depends on carefully regulated cellular activity and blood supply.
Clinical observations and research have reported associations between thyroid disorders and hearing-related symptoms, including tinnitus and hearing loss. However, the evidence does not establish that thyroid disease directly causes tinnitus in every affected person.
Several explanations are biologically plausible:
- Changes in auditory function: Thyroid hormones contribute to normal development and maintenance of the hearing system. Significant hormonal disturbances may affect how parts of this system function.
- Circulatory changes: Thyroid disorders can influence heart rate, blood pressure, and blood flow, potentially contributing to certain ear-related symptoms.
- Associated hearing problems: Tinnitus frequently accompanies hearing loss, including hearing changes that may be subtle or initially unnoticed.
- Indirect effects: Sleep disruption, anxiety, fatigue, and increased awareness of bodily sensations may make existing tinnitus harder to tolerate.
These possibilities are not equally established, and none proves that a particular person’s tinnitus is thyroid-related.
Why the connection can be difficult to identify
Thyroid disease and tinnitus may begin around the same time without one necessarily causing the other. Both can also occur alongside other conditions, including age-related hearing changes, medication effects, and cardiovascular problems.
A thyroid blood test can identify a hormonal problem, but it cannot determine the cause of tinnitus by itself. Clinicians need to consider the timing of symptoms, thyroid results, hearing function, medication history, and other relevant findings.
Is tinnitus more common with hypothyroidism or an underactive thyroid?
How low thyroid hormone levels may affect hearing
Hypothyroidism occurs when the thyroid gland does not produce enough thyroid hormone. Common symptoms include fatigue, feeling unusually cold, constipation, dry skin, difficulty concentrating, and sometimes weight gain.
Some people with hypothyroidism also experience hearing difficulties, dizziness, or tinnitus. Researchers have investigated whether reduced thyroid hormone activity can affect the inner ear and the nerves involved in hearing.
The inner ear contains specialized sensory cells that convert sound vibrations into electrical signals. These signals travel through the auditory nerve to the brain. The process requires healthy cells, stable chemical conditions, and adequate energy metabolism.
Thyroid hormones influence many of these biological processes. When hormone levels are significantly abnormal, changes in auditory function are plausible. However, the exact pathway connecting hypothyroidism to tinnitus remains incompletely understood, and tinnitus-specific evidence is limited compared with the broader research on thyroid disease and hearing function.
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Can treating hypothyroidism make tinnitus go away?
It may help in some circumstances, but this outcome is not guaranteed.
If a person has untreated hypothyroidism and tinnitus, correcting the thyroid hormone deficiency may improve overall health and could improve hearing-related symptoms when they are genuinely linked to the hormonal disturbance.
There are important limitations:
- Tinnitus may persist even after thyroid hormone levels return to the target range.
- The tinnitus may have another cause, such as noise-related hearing damage or ear disease.
- Improvement in fatigue, concentration, or sleep does not necessarily mean the tinnitus itself will improve.
- Some hearing changes may not fully reverse, particularly when another underlying problem is present.
The practical lesson: Treat hypothyroidism appropriately because it matters for your health, but do not rely on thyroid treatment alone to investigate persistent tinnitus.
Can hyperthyroidism or an overactive thyroid cause ringing in the ears?
How excess thyroid hormone might contribute
Hyperthyroidism occurs when the body is exposed to more thyroid hormone than it needs. Symptoms can include a racing or irregular heartbeat, tremor, sweating, heat intolerance, anxiety, difficulty sleeping, and unexplained weight loss.
Thyroid hormones influence cardiovascular activity. Excess hormone can increase heart rate and cardiac output, meaning the heart pumps more blood each minute. This may change how strongly a person notices their heartbeat or other internal bodily sensations.
In some circumstances, altered circulation may be relevant to ear symptoms. However, it would be inaccurate to conclude that increased blood flow from hyperthyroidism directly causes tinnitus in every affected person.
A few distinctions matter:
- Ordinary tinnitus: Ringing, buzzing, or hissing that does not consistently follow the heartbeat.
- Pulsatile tinnitus: A rhythmic whooshing, thumping, or beating sound that matches the pulse.
- Heightened sound awareness: Existing tinnitus may become more intrusive when someone is anxious, sleep-deprived, or physically uncomfortable.
These experiences can overlap, but they are not interchangeable. New pulsatile tinnitus deserves medical assessment rather than being automatically attributed to thyroid hormone levels.
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What if your tinnitus gets louder when your heart races?
Notice whether the sound actually matches your pulse or simply seems louder when you feel anxious or experience palpitations.
If the sound follows each heartbeat, arrange prompt medical evaluation. If you also have a very rapid or irregular heartbeat, chest pain, fainting, or severe breathlessness, seek urgent medical care according to the severity of the symptoms.
Do not assume that treating an overactive thyroid will resolve pulse-synchronous tinnitus. The sound can have other causes involving blood vessels, the middle ear, or surrounding structures.
Why do tinnitus and thyroid symptoms sometimes appear together?
Shared symptoms can obscure the real cause
One reason this connection frustrates patients is that thyroid disorders and tinnitus can affect several of the same aspects of daily life.
For example, a person with hypothyroidism might experience fatigue, poor sleep, and difficulty concentrating while also struggling to ignore a persistent ringing sound. Someone with hyperthyroidism might experience insomnia, palpitations, and heightened anxiety alongside tinnitus.
This overlap can make it difficult to tell which symptoms belong to which condition.
Consider three possibilities:
- Thyroid disease contributes to tinnitus. A hormonal disturbance may play a role in the person’s auditory symptoms.
- Two separate conditions coexist. A thyroid disorder and noise-related hearing loss, for example, may occur independently.
- Another factor affects both experiences. Medication changes, sleep disruption, or a separate health problem may influence symptoms without the thyroid disorder being the direct cause.
All three are possible. The pattern of symptoms and appropriate clinical testing help distinguish them.
Does stress make thyroid-related tinnitus worse?
Stress does not mean that tinnitus is imaginary, and it does not establish that thyroid disease caused it.
Tinnitus involves activity within the auditory system, while the brain’s attention and threat-processing networks influence how intrusive the sound feels. When you are worried about an unfamiliar noise, your attention may repeatedly return to it, making it more noticeable.
Thyroid-related symptoms can add to this burden. Palpitations, tremor, poor sleep, and uncertainty about your health may leave you more alert to bodily sensations.
A useful approach is to address both sides of the problem: investigate the physical causes and use practical strategies to reduce the disruption tinnitus creates in everyday life.
Could Hashimoto’s thyroiditis or Graves’ disease be linked to tinnitus?
Autoimmune thyroid disease and the inner ear
Hashimoto’s thyroiditis is an autoimmune condition that commonly leads to hypothyroidism. Graves’ disease is an autoimmune condition that can cause hyperthyroidism.
In autoimmune disorders, the immune system mistakenly targets the body’s own tissues. Researchers have investigated whether autoimmune activity can be associated with inner-ear problems in some patients.
The inner ear is a specialized sensory system with complex immune regulation. Certain autoimmune conditions can affect hearing or balance, but this does not mean that Hashimoto’s or Graves’ disease routinely attacks the inner ear.
Research on thyroid disorders and auditory symptoms includes studies of hearing loss, balance problems, and other inner-ear conditions. Direct evidence specifically establishing an autoimmune thyroid disease as the cause of tinnitus remains limited.
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Does having thyroid antibodies mean tinnitus is autoimmune?
No. Thyroid antibodies can help clinicians identify an autoimmune thyroid condition in the appropriate clinical setting, but a positive antibody result does not establish the cause of tinnitus.
Likewise, a normal thyroid hormone result does not necessarily mean a person has no thyroid-related autoimmune disease. Antibody findings, thyroid function, symptoms, and examination results must be interpreted together.
If you have known Hashimoto’s or Graves’ disease and new tinnitus, tell your clinician about both conditions. The goal is to assess the complete picture, not to assume that every new symptom is caused by autoimmunity.
What tests should you get if you have tinnitus and a thyroid problem?
You do not necessarily need every possible test. The most useful investigations depend on your symptoms, medical history, examination, and whether you already have a thyroid diagnosis.
1. Thyroid function tests
Your doctor may recommend:
- TSH (thyroid-stimulating hormone): A hormone that helps regulate thyroid activity. It is commonly used as the initial test for suspected primary thyroid dysfunction.
- Free T4 (free thyroxine): Helps assess circulating thyroid hormone levels and interpret an abnormal TSH result.
- Free T3: May be useful when hyperthyroidism is suspected, particularly in selected cases where TSH is low but free T4 is not elevated.
- Thyroid antibodies: May be appropriate when an autoimmune thyroid condition is suspected.
The choice of tests depends on your circumstances. A thyroid ultrasound is not routinely needed just because you have tinnitus; it is generally used when there are specific structural concerns, such as a thyroid nodule or enlargement.
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2. A hearing assessment
An audiologist or ENT specialist may examine your ears and arrange a hearing test, particularly if tinnitus persists or affects your daily life.
A hearing assessment can help identify hearing loss that you might not notice during ordinary conversations. It can also provide useful information about whether one ear is affected more than the other.
Depending on your symptoms, the clinician may investigate earwax, infection, middle-ear problems, or other causes. Imaging is not necessary for everyone with tinnitus; it is considered when the symptom pattern or examination suggests a reason for it.
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3. A review of medications and other health conditions
Tell your clinician about prescription medicines, over-the-counter products, and supplements you take. Some medicines can contribute to tinnitus, depending on the drug and dose.
Your clinician may also consider blood pressure, cardiovascular symptoms, recent noise exposure, and other health conditions. This broader assessment helps avoid attributing every ear symptom to the thyroid.
What can you do today if you have tinnitus and thyroid disease?
You can take several practical steps while arranging an appropriate evaluation.
Step 1: Record when the tinnitus started
Write down:
- The approximate date it began.
- Whether it affects one ear or both.
- Whether it is constant or intermittent.
- Whether it sounds like ringing, buzzing, humming, or a pulse.
- Whether you noticed it before or after a thyroid diagnosis, medication change, or dose adjustment.
These details can help your clinician identify patterns without relying on memory alone.
Step 2: Track thyroid symptoms and tinnitus separately
For one to two weeks, if your symptoms are stable and no urgent warning signs are present, record your tinnitus and other symptoms once or twice daily.
For example:
- Tinnitus intensity: mild, moderate, or severe.
- Sleep quality: good, fair, or poor.
- Palpitations or tremor: present or absent.
- Thyroid medication: taken as prescribed, with any missed doses noted.
- Relevant events: loud-noise exposure, illness, or a medication change.
Avoid checking the sound every few minutes. Frequent monitoring can keep your attention fixed on it and make it harder to concentrate on other activities.
Step 3: Take thyroid medication exactly as prescribed
If you take levothyroxine or medication for hyperthyroidism, follow your prescribed schedule.
Do not increase, decrease, or stop your dose because the tinnitus changes. Too little or too much thyroid medication can create additional health problems.
If tinnitus began after a medication was started or adjusted, contact the prescribing clinician to review the timing and dose. Do not assume the medicine is responsible without an assessment.
Step 4: Protect your hearing without avoiding ordinary sounds
Use appropriate hearing protection around genuinely loud noise, such as power tools or amplified music. However, wearing earplugs all day in ordinary, safe environments is generally unnecessary and may make tinnitus more noticeable.
At bedtime, try gentle background sound if silence makes the ringing intrusive. A quiet fan, soft natural sounds, or low-volume audio may help reduce the contrast between the tinnitus and the surrounding environment.
Keep the volume comfortable, and do not use loud audio to overpower the sound.
Step 5: Make sleep more manageable
Poor sleep can make tinnitus harder to tolerate, and tinnitus can in turn interfere with sleep.
Try maintaining a consistent wake-up time and using a short wind-down routine before bed. If you notice that checking your tinnitus keeps you awake, redirect your attention to a quiet activity or comfortable background sound.
If insomnia continues, ask a healthcare professional about cognitive behavioural therapy for insomnia (CBT-I) or appropriate tinnitus support. You do not need to wait for your thyroid levels to normalize before addressing sleep difficulties.
When should you see a doctor for tinnitus and thyroid symptoms?
Arrange a routine appointment if:
- Tinnitus occurs regularly or persists.
- You have known thyroid disease and your symptoms have changed.
- You notice gradual hearing difficulties.
- The sound interferes with sleep, work, concentration, or emotional well-being.
- Tinnitus began after a medication change.
- You have other symptoms suggesting that your thyroid function needs reassessment.
A primary-care doctor can review your general health and thyroid status. An audiologist or ENT specialist can evaluate your hearing and ear-related symptoms. An endocrinologist may be helpful if your thyroid disorder is difficult to control or needs specialist management.
Seek urgent medical assessment if:
- You develop sudden hearing loss, particularly over hours or within three days. Sudden hearing loss accompanied by tinnitus requires urgent evaluation, ideally within 24 hours.
- The tinnitus beats in time with your pulse. New or persistent pulsatile tinnitus should be medically assessed rather than assumed to be thyroid-related.
- You experience facial weakness, new neurological symptoms, severe uncontrolled vertigo, or tinnitus after a significant head injury. Seek emergency assessment, particularly when symptoms begin suddenly.
Do not delay urgent care while waiting for thyroid blood-test results.
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What should you NOT do if you think your thyroid is causing tinnitus?
Do not assume that thyroid disease explains everything
A thyroid diagnosis can provide a useful clue, but it should not prevent investigation of hearing loss, ear disease, medication effects, or other possible causes.
Do not take iodine or thyroid supplements without medical advice
Excess iodine can worsen certain thyroid disorders. Supplements marketed as thyroid support may contain ingredients that are inappropriate for your condition or interfere with treatment.
There is no established supplement that reliably treats thyroid-related tinnitus.
Do not change your thyroid medication to treat ringing
Adjusting thyroid medication without appropriate testing can lead to under-treatment or excessive thyroid hormone levels. Neither is a safe tinnitus treatment strategy.
Do not rely on detoxes or unproven cures
Be cautious of claims that removing toxins, taking high-dose vitamins, or using a particular herbal product will permanently eliminate tinnitus. These claims are not supported by reliable evidence.
Do not ignore hearing changes while waiting for hormonal treatment to work
Even if your thyroid function is abnormal, hearing loss may need its own evaluation and timely management. Waiting for thyroid treatment to resolve every symptom can delay appropriate care.
If your thyroid tests are normal, could thyroid disease still be responsible?
This is a common source of confusion. A normal thyroid function test may make an active hormone imbalance less likely, but it does not identify the cause of tinnitus.
If you have a history of thyroid disease, your clinician can interpret the results alongside your medication, symptoms, and previous test values. In some situations, further thyroid evaluation is appropriate. In others, attention should shift toward hearing and ear health.
It is also possible that your tinnitus has no identifiable single cause. That uncertainty can be frustrating, but it does not mean the symptom is imaginary or that nothing can be done to help you manage it.
Tinnitus care can still focus on hearing support, sleep, emotional well-being, and reducing its effect on daily life even when the original trigger remains uncertain.
Frequently asked questions about tinnitus and thyroid disorders
Can tinnitus be the first sign of a thyroid problem?
It is possible for tinnitus to occur in someone with previously undiagnosed thyroid disease, but tinnitus alone is not a reliable indicator of thyroid dysfunction. Thyroid testing is more useful when your medical history or other symptoms suggest a thyroid problem.
Will tinnitus disappear once my TSH becomes normal?
Not necessarily. If thyroid dysfunction contributed to the tinnitus, appropriate treatment may help. However, the sound can persist because of other causes or changes in the auditory system. A normal TSH result does not guarantee that tinnitus will disappear.
Can levothyroxine make tinnitus worse?
Tinnitus can occur around the time a medication is started or adjusted, but timing alone does not prove that levothyroxine caused it. Report new or worsening symptoms to your prescriber, who can assess your dose, thyroid results, and other possible explanations. Do not stop treatment independently.
Can thyroid-related tinnitus affect only one ear?
Yes, tinnitus can occur in one ear or both. However, one-sided tinnitus should not automatically be attributed to thyroid disease, particularly when it persists or occurs alongside unequal hearing. An ear and hearing assessment is important.
Is thyroid-related tinnitus permanent?
There is no single outcome for everyone. Some people may improve when an underlying contributing condition is treated, while others continue to experience tinnitus. The available evidence does not allow clinicians to predict reliably whether an individual’s tinnitus will resolve solely through thyroid treatment.
Final thoughts: Understanding the thyroid–tinnitus connection
Thyroid disorders may be associated with tinnitus through changes in auditory function, circulation, or related symptoms, but the precise relationship remains incompletely understood. The strongest practical approach is to investigate both thyroid health and hearing rather than assuming that one explains the other.
Keep taking prescribed medication as directed, document meaningful symptom changes, and seek timely care for new or persistent tinnitus. If the ringing continues or worsens, consult an audiologist or ENT specialist, even if your thyroid tests are normal.
Medical disclaimer: This article is for educational purposes only and is not a substitute for professional medical diagnosis or individualized treatment.