Why Do I Hear My Heart Beating in My Head?

That rhythmic whooshing or thumping in your head, perfectly in sync with your pulse, is called pulsatile tinnitus. Unlike the steady ringing most people associate with tinnitus, pulsatile tinnitus almost always has a real, physical source of sound inside your body, and it accounts for roughly 5 to 10 percent of all tinnitus cases.¹ The cause can range from something completely harmless to something that genuinely needs medical attention, which is why the symptom deserves a closer look rather than a shrug.

What Makes Pulsatile Tinnitus Different from Regular Tinnitus

Most tinnitus, the constant ringing or buzzing that affects millions of people, is generated by the nervous system itself. The brain creates a phantom sound, often in response to hearing damage, and there is no actual acoustic signal to detect. Pulsatile tinnitus works differently. It requires both a functioning ear and a genuine physical source of sound, usually blood flow that has become turbulent or unusually loud near the ear.² Because there is a real sound being produced, doctors can sometimes hear it too by placing a stethoscope near your ear or skull. When both the patient and the examiner can hear it, it is called objective pulsatile tinnitus. When only the patient hears it, it is subjective, but even then there is usually a structural explanation waiting to be found.

Doctors classify pulsatile tinnitus by where the sound originates: arterial, venous, or arteriovenous.² That classification matters because it shapes the diagnostic workup and determines what kind of specialist you end up seeing. Venous causes are the most common in everyday practice, but arterial and structural causes deserve just as much attention because some of them carry real risk.

Venous Causes and Why They Are So Common

The veins that drain blood from your brain run remarkably close to the inner ear, particularly a large channel called the transverse sinus and its continuation, the sigmoid sinus. If those sinuses narrow, the blood passing through speeds up and becomes turbulent, much the way water makes more noise when you partially cover a garden hose nozzle. That turbulence vibrates nearby bone and is picked up by the cochlea as a pulsing sound.

Narrowing of the transverse sinus, called transverse sinus stenosis, is one of the most frequently identified causes. Research on patients with unilateral venous pulsatile tinnitus found that the affected side typically showed about 78 percent stenosis, and as the degree of narrowing increased by 10 percent, the pressure difference across the narrowed segment rose by roughly 3 mmHg.³ More pressure difference means faster, louder blood flow, which explains why the tinnitus can get worse with anything that raises venous pressure, like lying down, bending over, or straining.

A related finding involves abnormalities in the sigmoid sinus wall itself, such as small pouches called diverticula or spots where the thin bony covering has worn away completely (dehiscence). When that protective bone is missing, there is essentially nothing between the turbulent blood flow and the structures of the inner ear. Some researchers have found that these wall abnormalities are more common in patients who also have elevated intracranial pressure, though the evidence is not fully consistent.⁴

The Link to Raised Intracranial Pressure

One condition that frequently shows up alongside pulsatile tinnitus is idiopathic intracranial hypertension (IIH), a disorder in which the pressure of the fluid surrounding the brain is chronically elevated without an obvious cause like a tumor or infection. IIH disproportionately affects younger women, particularly those who are overweight. The whooshing in the ears can be the very first symptom, sometimes appearing well before headaches or vision changes.

Severe bilateral transverse sinus narrowing is significantly more common in IIH patients than in healthy controls.⁵ The relationship works both ways: high intracranial pressure can compress the sinuses, and compressed sinuses can impede drainage and raise pressure further. Whether the sinus narrowing alone is enough to cause pulsatile tinnitus in IIH, or whether it needs an additional structural abnormality like a wall dehiscence, is still debated.⁴ The practical takeaway is that new-onset pulsatile tinnitus, especially in a young woman with headaches or blurred vision, should prompt a check for IIH because untreated high intracranial pressure can damage the optic nerves.

Arterial Causes

On the arterial side, the internal carotid artery is the usual suspect. This large artery runs directly through the petrous bone of the skull, millimeters from the middle ear. If atherosclerotic plaque narrows the artery or if the vessel wall becomes irregular, blood flow turns turbulent and the ear picks up the sound. Atherosclerotic carotid stenosis is a well-recognized but relatively uncommon cause of pulsatile tinnitus.⁶ In such cases, the tinnitus itself may be the least of the worries; a significantly narrowed carotid artery raises the risk of stroke, so detecting it through a tinnitus workup can be genuinely life-saving.

Other arterial causes include fibromuscular dysplasia, an abnormal thickening of the artery wall that tends to affect younger adults, and aberrant courses of the carotid artery where it takes an unusual path through the skull base. These are less common but tend to produce a particularly loud, easily localizable sound.

Vascular Malformations and Tumors

Dural arteriovenous fistulas are abnormal connections between an artery and a vein within the tough membrane (dura) covering the brain. Blood shunts directly from the high-pressure arterial system into a low-pressure vein, creating turbulence that the ear can detect. The character of the sound relates to the size of the fistula: a narrow connection tends to produce a higher-pitched tone with lower volume, while a wider channel creates a louder, more broadband whoosh.⁷ Dural fistulas are important to identify because some types can cause bleeding or redirect blood flow away from the brain.

Tumors can also produce pulsatile tinnitus. The most well-known is the glomus jugulare tumor (also called a jugular paraganglioma), a slow-growing mass that arises from specialized cells within the wall of the jugular bulb, the large venous structure at the skull base. Hearing loss and pulsatile tinnitus are the classic presenting symptoms.⁸ These tumors are almost always benign, but they can erode into surrounding bone and compress nearby nerves if left untreated.

Bone Defects Near the Inner Ear

The inner ear sits inside some of the densest bone in your body, and for good reason: that bone acts as insulation, keeping the delicate hearing structures shielded from the vibrations and sounds your own body produces. When that bone thins or develops a gap, the insulation fails. Superior semicircular canal dehiscence is a condition in which a small opening forms in the bone over one of the balance canals. Patients typically hear sounds amplified through bone conduction, including their own footsteps, eye movements, and heartbeat, and they may also experience vertigo triggered by loud sounds or pressure changes.⁹ The pulsatile tinnitus in this case comes not from more turbulent blood flow but from the ear’s abnormally heightened ability to hear blood flowing normally through nearby vessels.

Temporary and Benign Causes

Not every episode of hearing your heartbeat in your head points to a structural problem. There are situations in which perfectly healthy people experience it.

Exercise or exertion: During intense physical activity, your cardiac output increases substantially. More blood flowing at higher pressure through vessels near the ear can create an audible pulse that fades as your heart rate returns to normal.
Anxiety and hyperawareness: Stress hormones increase heart rate and blood pressure while also sharpening your attention to bodily sensations. People in the middle of a panic attack commonly report hearing their heartbeat in their ears, not because the anatomy has changed but because awareness has.
Lying on one ear: Pressing your head into a pillow can compress the veins draining your skull on that side, altering flow enough to create temporary turbulence. It can also simply press the ear against a surface that conducts the body’s internal sounds more efficiently.
Pregnancy or anemia: Any condition that increases cardiac output or decreases blood viscosity can amplify vascular sounds. During pregnancy, blood volume rises significantly, and in anemia, the heart compensates for fewer red blood cells by pumping harder. Both can make existing blood flow noisy enough to hear.

These transient causes typically produce pulsatile tinnitus that comes and goes with the triggering situation. When the sound is persistent, present most of the day, or only in one ear, the odds shift toward a structural cause worth investigating.

When One Ear vs. Both Ears Matters

Whether you hear the heartbeat in one ear or both is a useful clue. Bilateral pulsatile tinnitus, heard roughly equally on both sides, more often points to systemic causes like anemia, thyroid disease, or high cardiac output states. Unilateral pulsatile tinnitus, confined to one side, is more suggestive of a localized anatomical problem such as sinus stenosis, a fistula, or a tumor on that side. Clinical guidance generally recommends that bilateral cases prompt bloodwork and an assessment of cardiac output, while unilateral cases call for focused imaging of the skull base and neck vessels.¹

How Doctors Track Down the Cause

The diagnostic workup for pulsatile tinnitus usually starts with a careful physical exam, including listening near the ear and over the neck vessels with a stethoscope. From there, imaging is the backbone. MRI and MRA (magnetic resonance angiography) are often the first imaging step because they avoid radiation and can detect a broad range of vascular and structural causes. In one series of patients with subjective pulsatile tinnitus, MRI/MRA identified the underlying cause in about 40 percent of cases, with roughly 80 percent sensitivity and 88 percent specificity.¹⁰

CT angiography and high-resolution CT of the temporal bone are frequently added, especially when looking for bony defects like sigmoid sinus dehiscence or superior canal dehiscence that MRI can miss. When noninvasive imaging alone does not yield an answer, catheter-based digital subtraction angiography (DSA) may be performed. A study reviewing the diagnostic yield found that noninvasive imaging alone identified a cause in about half of patients, and among those who also underwent DSA, about one in five received a diagnosis that noninvasive imaging had missed.¹¹ Older patients at symptom onset and those with lower body mass index were more likely to have noninvasive imaging come up empty, suggesting that the underlying causes in those groups tend to be subtler vascular abnormalities that need the higher resolution of catheter angiography.¹¹

Treatment Depends Entirely on the Cause

Because pulsatile tinnitus is a symptom rather than a disease, there is no single treatment. What works depends on what is generating the sound.

For venous sinus stenosis, especially when it occurs alongside idiopathic intracranial hypertension, venous sinus stenting has become an increasingly popular intervention. A stent is threaded into the narrowed sinus to hold it open, reducing the pressure gradient and eliminating the turbulence. In a study of 29 patients who underwent stenting, the pulsatile tinnitus resolved immediately after the procedure in most cases, with significant drops in both tinnitus severity and the pressure gradient across the narrowed segment. Over a mean follow-up of about two years, roughly 10 percent experienced recurrent narrowing and return of the tinnitus.¹² Broader reviews corroborate a high rate of tinnitus resolution with this approach.¹³

Carotid stenosis causing pulsatile tinnitus can be addressed with stenting of the carotid artery itself. Case reports describe pulsatile tinnitus disappearing once the stenosis is relieved and normal flow restored.⁶ Dural arteriovenous fistulas are typically treated with embolization, a procedure in which a neuroradiologist threads a catheter to the fistula and blocks it with glue-like material or small coils. Tumors like glomus jugulare paragangliomas may be treated with surgery, radiation, or a combination depending on size and location.

For superior canal dehiscence, surgical repair involves plugging or capping the opening in the bone to restore the ear’s insulation. This is generally reserved for patients whose symptoms are severe enough to significantly affect daily life, since the surgery involves a craniotomy.

When pulsatile tinnitus stems from a reversible systemic cause like anemia or hyperthyroidism, treating the underlying condition is usually all that is needed. And for people whose pulsatile tinnitus is mild, intermittent, and associated with no dangerous cause on imaging, reassurance and sound therapy or masking techniques can help manage the perception.

Somatosensory Pulsatile Tinnitus

There is a less well-known form in which the pulsation can be influenced or even switched on and off by movements or pressure on the head and neck. This is sometimes called somatosensory pulsatile tinnitus. In one clinical series, about 90 percent of patients could temporarily suppress their pulsations through specific touch or pressure maneuvers, and in several patients who were not experiencing pulsations at the time of testing, such maneuvers actually triggered them.¹⁴ This suggests that in some cases, muscle tension or nerve activity in the head and neck region is contributing to or modulating the sound. Treatment approaches for this variant have included targeted dry needling of head and neck muscles and botulinum toxin injections, with some cases resolving completely.

Patulous Eustachian Tube and Overlapping Symptoms

Some people who report hearing their heartbeat in their head actually have a different problem: a patulous (abnormally open) eustachian tube. Normally, the eustachian tube stays closed and opens briefly during swallowing or yawning. When it stays open, sounds from inside the body, including your own breathing and heartbeat, are transmitted directly to the middle ear. The medical term for hearing your own internal body sounds this way is autophony. The experience can closely mimic pulsatile tinnitus, particularly when the dominant sound is the heartbeat. However, autophony from a patulous eustachian tube is usually accompanied by hearing your own voice as disturbingly loud or booming, and the symptoms often improve when you lie down or bend your head forward, because those positions increase blood flow to the tissue surrounding the tube and help it close. This pattern is essentially the opposite of venous pulsatile tinnitus, which often gets worse when lying down.

The Role of Heightened Brain Sensitivity

For some people, the physical source of sound is present but modest, something that would normally be filtered out by the brain. Healthy bodies are noisy places: blood is always flowing, joints are always creaking, the gut is always gurgling. The brain normally suppresses awareness of these internal sounds in the same way it tunes out the feeling of clothing on your skin. When the brain’s gain control is turned up, potentially through stress, anxiety, sleep deprivation, or prior hearing damage, faint internal sounds that were always there can become consciously audible. This concept of enhanced central gain has been studied primarily in the context of hyperacusis and non-pulsatile tinnitus, but it likely plays a role in why some people become aware of vascular sounds that others with identical anatomy never notice.¹⁵ This does not mean the symptom is imaginary. It means the explanation sometimes involves both a real sound source and a brain that has become unusually good at detecting it.

When You Should See a Doctor

Occasional awareness of your heartbeat in your ears, lasting seconds to minutes and clearly tied to exercise, a quiet room, or a stressful moment, is almost always benign. The situations that warrant medical evaluation are more specific:

Persistent and unilateral: A constant or near-constant whooshing confined to one ear has a higher probability of a structural cause.
Accompanied by hearing loss: If the heartbeat sound comes with reduced hearing on the same side, the combination raises concern for a tumor, fistula, or other middle-ear pathology.
New headaches or vision changes: These may indicate raised intracranial pressure, which needs evaluation to protect the optic nerves.
Neck bruit audible to others: If someone can hear the sound with a stethoscope over your neck, that points toward a carotid or vertebral artery issue.
After head trauma: A new pulsatile tinnitus following injury raises the possibility of a traumatic arteriovenous fistula or vascular dissection.

If you do see a doctor, an ENT specialist or a neurologist experienced with pulsatile tinnitus is generally the most productive starting point. Going in with a clear description of which ear is affected, whether the sound changes with position or activity, and whether you can alter it by pressing on your neck will help guide the workup efficiently.

1
PubMed Central. Pulsatile Tinnitus: A Comprehensive Clinical Approach to Diagnosis and Management
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PubMed Central. Pulsatile tinnitus: imaging and differential diagnosis
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PubMed Central. The Relationships Among Transverse Sinus Stenosis Measured by CT Venography, Venous Trans-stenotic Pressure Gradient and Intracranial Pressure in Patients With Unilateral Venous Pulsatile Tinnitus
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PubMed Central. Pulsatile Tinnitus as the Primary Symptom in IIH: A Distinct Clinical Entity
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PubMed Central. Sigmoid Sinus Diverticulum, Dehiscence, and Venous Sinus Stenosis: Potential Causes of Pulsatile Tinnitus in Patients with Idiopathic Intracranial Hypertension?
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PubMed Central. Disappeared pulsatile tinnitus related to petrous segment stenosis of the ICA after relief of the stenosis by stenting
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Scientific Reports. Dural arteriovenous fistula masquerading as pulsatile tinnitus: radiologic assessment and clinical implications
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PubMed Central. Glomus jugulare: high index of clinical suspicion is important for optimal management
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PubMed Central. Superior Canal Dehiscence Syndrome: Lessons from the First 20 Years
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PubMed. Diagnostic utility of magnetic resonance imaging and magnetic resonance angiography in the radiological evaluation of pulsatile tinnitus
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PubMed Central. The role of noninvasive imaging in the diagnostic workup for pulsatile tinnitus
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PubMed Central. Resolution of Pulsatile Tinnitus after Venous Sinus Stenting in Patients with Idiopathic Intracranial Hypertension
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PubMed Central. Venous sinus stenting for intractable pulsatile tinnitus: A review of indications and outcomes
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PubMed Central. Somatosensory Pulsatile Tinnitus Syndrome (SSPT) Revisited
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PubMed Central. Central gain control in tinnitus and hyperacusis