Why Can I Hear My Heartbeat? Causes and When to See a Doctor

Hearing your own heartbeat in your ears, a rhythmic whooshing or thumping that keeps time with your pulse, is a real auditory phenomenon called pulsatile tinnitus. It accounts for roughly 5 to 10 percent of all tinnitus cases and, unlike the steady ringing that most people associate with tinnitus, it almost always has an identifiable physical cause somewhere in the blood vessels, bones, or soft tissues near the ear.¹ That distinction matters: many of those causes are treatable once found, and a few are medically urgent.

What Makes the Sound

Every heartbeat sends a pressure wave through your arteries and veins. Normally, blood flows smoothly and quietly enough that your brain filters it out. When something changes the flow pattern or amplifies the vibration near your ear, the sound breaks through. The causes split loosely into vascular ones, where the blood itself is making noise, and non-vascular ones, where a structural quirk in the ear or skull is letting you hear what was always there.

The sound people describe varies. Most report a whooshing or pulsing in one ear that perfectly matches their heartbeat. Others hear a low hum, a thumping, or something closer to ocean waves. In some cases, the sound is loud enough that a doctor can hear it too using a stethoscope placed near the ear or skull. When an examiner can detect the noise externally, clinicians call it “objective” pulsatile tinnitus, and it can be the first clue pointing toward a vascular abnormality such as an arteriovenous fistula.²

Arterial Causes

One of the more straightforward explanations is turbulent blood flow in the carotid artery, the large vessel that runs up through the neck and past the inner ear on its way to the brain. If the artery narrows due to plaque buildup (atherosclerosis), blood squeezes through the tight spot and creates turbulence, much the way water rushing through a kinked garden hose makes noise. Atherosclerotic carotid stenosis is a well-recognized, if relatively uncommon, cause of pulsatile tinnitus.³ In some patients, the narrowing sits in the petrous segment of the internal carotid artery, the stretch that passes through the temporal bone right beside the ear, which makes the turbulence especially audible.⁴

Other arterial sources include abnormal tangles of blood vessels (arteriovenous malformations or fistulas), where arterial blood shunts directly into veins without passing through the normal capillary network. The high-pressure, high-volume flow through those connections can generate a loud bruit, sometimes audible not just to the patient but to anyone nearby. These malformations deserve attention because they carry their own risks, including bleeding, and treatment often resolves the tinnitus completely.

Venous Causes

Veins near the ear are actually the more common vascular culprits, partly because the sigmoid sinus, a large venous channel draining blood from the brain, sits just behind the mastoid bone on each side of the skull. If the thin wall of bone separating the sinus from the middle ear wears thin or develops a gap (a dehiscence), or if a small outpouching called a diverticulum forms along the sinus wall, blood flow through that area becomes audible.⁵ Sigmoid sinus diverticula are not common in the general population, but when they do occur, pulsatile tinnitus in the affected ear is the hallmark symptom.⁶

The venous side also includes conditions where blood flow through the jugular bulb, the large venous pouch at the base of the skull, becomes turbulent. A high-riding or dehiscent jugular bulb sits closer to the middle ear than usual, and the result is a pulsating sound that can change with head position or when you press on the neck on the affected side. If you notice that tilting your head or pressing lightly on your neck temporarily silences the sound, a venous source becomes more likely, because light compression can briefly change the flow through these veins.

Raised Intracranial Pressure

A less obvious cause is elevated pressure of the cerebrospinal fluid (CSF) that bathes the brain. The condition most often linked to this is idiopathic intracranial hypertension (IIH), formerly called pseudotumor cerebri, which disproportionately affects younger women, particularly those with a higher body weight. In IIH, the increased pressure can compress or narrow the venous sinuses, creating turbulent flow that the patient hears as pulsatile tinnitus. Treating the pressure with medications like acetazolamide, or even a simple spinal tap to remove excess fluid, can significantly reduce the tinnitus.⁷

Interestingly, the severity of pulsatile tinnitus in IIH patients does not necessarily track with how many abnormalities show up on brain imaging. One study found that the presence of pulsatile tinnitus did not correlate with the total number of MRI abnormalities associated with IIH, suggesting the tinnitus is not a reliable gauge of how advanced the condition is.⁸ That is worth knowing because some patients with mild imaging findings can still have intense, bothersome pulsatile tinnitus, while others with more obvious changes on MRI may not hear a thing.

When the Eustachian Tube Stays Open

Not every case of hearing your heartbeat traces back to blood vessels or pressure. Sometimes the issue is mechanical: a tube that is supposed to stay mostly closed is stuck open. The Eustachian tube connects your middle ear to the back of your throat and normally opens briefly when you swallow or yawn to equalize pressure. In patulous Eustachian tube dysfunction (PETD), the tube remains chronically open, letting internal body sounds, including your heartbeat and breathing, travel straight into the middle ear and become uncomfortably audible.⁹

Patients with PETD typically describe hearing not just their heartbeat but also their own voice echoing (autophony) and the sound of their breathing amplified in the ear.¹⁰ A common trigger is rapid weight loss, because the fat pad surrounding the Eustachian tube shrinks and can no longer hold it closed. Case reports have linked PETD to significant weight loss after bariatric surgery and, more recently, after rapid weight loss associated with GLP-1 receptor agonist medications like semaglutide.¹¹ If you started hearing your heartbeat in your ear after losing a substantial amount of weight over a short period, PETD is a strong possibility worth raising with your doctor.

Middle Ear Muscle Spasms

Two tiny muscles live inside the middle ear: the tensor tympani and the stapedius. Their job is to dampen loud sounds by tightening the chain of small bones that transmits vibrations. Occasionally, one or both of these muscles begin to contract rhythmically on their own, a condition called middle ear myoclonus. The resulting sound is often described as clicking, tapping, fluttering, or a drum-like thumping, and it can be regular or irregular, continuous or on-and-off.¹²

Middle ear myoclonus is rare and does not always sync with the heartbeat the way vascular pulsatile tinnitus does. The rhythm can speed up, slow down, or pause entirely in a way that your pulse never would. That irregularity is actually a useful clue: if the sound in your ear sometimes races ahead of or falls behind your heartbeat, a muscular cause is more plausible than a blood-vessel one. Treatment ranges from muscle relaxants to, in persistent cases, surgical division of the involved muscle tendon.

Common Benign Triggers

Before assuming the worst, it is worth noting that many people hear their heartbeat in their ears occasionally without anything being structurally wrong. Vigorous exercise, lying down with your ear pressed against a pillow, high caffeine intake, anxiety, and dehydration can all temporarily make your pulse more noticeable. Pregnancy is another well-known trigger, because blood volume increases significantly and the heart works harder, which can amplify normal vascular sounds near the ear.

These benign episodes tend to be brief and situational. The sound comes and goes, tracks with exercise or body position, and does not dominate your day. You might also notice it during a particularly quiet moment, like lying in bed at night when there is no ambient noise to mask it. If the sound fades on its own and only shows up in specific, explainable circumstances, it is usually not a sign of an underlying vascular problem.

When to See a Doctor

The line between “harmless and annoying” and “needs medical attention” rests on a few red flags. You should seek evaluation if:

The sound is persistent: It has been present daily for more than a few weeks and is not tied to exercise, body position, or a temporary state like pregnancy.
It is one-sided: Pulsatile tinnitus in just one ear is more likely to reflect a structural or vascular abnormality on that side.
You have accompanying symptoms: Headaches (especially worse in the morning or when bending over), vision changes, unexplained weight gain, or a feeling of fullness in the head can point to raised intracranial pressure.
You notice hearing loss: A combination of pulsatile tinnitus and decreased hearing may indicate a middle ear or inner ear structural issue.
Someone else can hear it: If a partner lying next to you or a doctor with a stethoscope can detect the sound, it is likely objective pulsatile tinnitus and warrants imaging.

A doctor will typically start with a physical exam, including listening with a stethoscope over the ear, the mastoid bone, and the neck. If pulsatile tinnitus is confirmed, imaging is the next step. CT and MRI provide complementary information, and newer techniques such as dynamic CT angiography (sometimes called 4D-CTA) can map blood flow in real time and help identify vascular malformations that older static imaging might miss.¹³

Treatment Options That Actually Work

Because pulsatile tinnitus usually has an identifiable cause, treatment is often targeted and effective. For venous sinus abnormalities, stenting the affected sinus has shown strong results. In one prospective trial, 39 out of 42 patients experienced complete resolution of their pulsatile tinnitus after venous sinus stenting, with no serious adverse events reported.¹⁴ For sigmoid sinus diverticula specifically, a scoping review of endovascular treatments found complete symptom resolution in about 84 percent of patients and partial improvement in another 10 percent, with complications that were generally uncommon and temporary.¹⁵

For arterial stenosis, angioplasty with stenting of the narrowed segment has resolved pulsatile tinnitus in documented cases.⁴ When raised intracranial pressure is the driver, treatment with acetazolamide (a diuretic that reduces CSF production) can significantly diminish tinnitus severity, with effects sustained over weeks.⁷ Surgical resurfacing of the sigmoid sinus wall, where surgeons pack material over the dehiscent bone to dampen the sound transmission, is another approach for patients with specific bony defects near the sinus.⁵

When No Specific Cause Is Found

Not every case gets a neat diagnosis. Some patients undergo imaging and examination and come away without an identified structural or vascular source. In those situations, management shifts to helping the person live with the sound rather than eliminating its source. Cognitive behavioral therapy (CBT) adapted for tinnitus has the strongest evidence here. Rather than targeting the sound itself, CBT helps change the way you respond to it, breaking the cycle of anxiety and hypervigilance that makes tinnitus feel louder and more intrusive. A randomized trial of smartphone-based CBT combined with customized sound therapy found significantly greater improvements in tinnitus severity, depression, anxiety, and sleep quality compared to a control group.¹⁶ Over half of treated patients with moderate-to-severe sleep difficulties experienced meaningful sleep improvement.

Sound therapy alone, using background noise generators, white noise apps, or hearing aids with built-in masking features, has been less convincing on its own. A Cochrane review found no significant difference in tinnitus loudness or overall severity when sound therapy was compared to other interventions like patient education, relaxation techniques, or counseling.¹⁷ That does not mean masking is useless in practice. Many people find that having background sound makes the tinnitus less noticeable, especially at night. It just means that the evidence for masking as a standalone clinical treatment is thin compared to structured psychological approaches. The combination of CBT with sound elements seems to be more effective than either alone.

Weight Loss Medications and a New Pattern

The recent surge in GLP-1 receptor agonist use for weight loss has brought an unexpected side effect into sharper focus. As patients on medications like semaglutide lose weight rapidly, clinicians have begun seeing more cases of patulous Eustachian tube dysfunction, where the fat pad supporting tube closure shrinks and the tube stays open. Case reports have documented patients developing autophony and pulsatile tinnitus following significant semaglutide-related weight loss.⁹ The mechanism is the same as what has long been seen after bariatric surgery: rapid fat depletion around the tube changes its mechanics.¹¹

This is a relatively new clinical phenomenon tied to the sheer number of people now losing weight quickly on these drugs. If you are taking a GLP-1 agonist and notice your own voice echoing in your ear, the sound of your breathing amplified, or a rhythmic thumping in one ear, PETD is worth discussing with your prescriber. Treatment ranges from conservative measures (nasal saline drops, staying hydrated, sometimes adjusting the rate of weight loss) to procedural interventions if symptoms persist. Most cases remain manageable, but awareness among both patients and clinicians is still catching up with how common rapid weight loss has become.

Living with the Sound While Waiting for Answers

Diagnostic workups for pulsatile tinnitus can take time. You may need multiple imaging studies, referrals between ENTs, neurologists, and interventional radiologists, and sometimes repeat visits before a cause is pinpointed. During that stretch, the psychological burden can be significant. The sound is relentless, it tracks your pulse, and it often gets louder in quiet environments, making sleep the hardest part of the day. Structured approaches like CBT-based insomnia therapy have shown real benefits for tinnitus-related sleep disruption, working by reshaping sleep habits and reducing the anxiety-arousal loop that keeps you listening for the sound at bedtime.¹⁸

Practical tips that patients commonly find helpful include sleeping with a fan or low-level background audio, avoiding silence when possible (a quiet room amplifies the perception of any internal sound), limiting caffeine and alcohol in the evening, and staying physically active without overdoing high-intensity exercise that spikes heart rate and temporarily worsens the sound. Keeping a brief daily log of when the sound is loudest, what position you were in, and what you were doing can also give your doctor useful information at your next appointment. The pattern often reveals clues: worse when lying on one side suggests a venous cause, worse during headaches suggests intracranial pressure, and worse during anxiety or stress may implicate the attentional-amplification loop that CBT targets.

1
PubMed Central. Pulsatile Tinnitus: A Comprehensive Clinical Approach to Diagnosis and Management
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PubMed Central. Objective pulsatile tinnitus
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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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PubMed. Pulsatile tinnitus cured by angioplasty and stenting of petrous carotid artery stenosis
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PubMed. Transmastoid Hydroxyapatite Resurfacing for Sigmoid Sinus Wall Anomalies Causing Pulsatile Tinnitus
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PubMed. Sigmoid Sinus Diverticulum-A Unique Case of Pulsatile Tinnitus
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PubMed Central. Patients with pulse-synchronous tinnitus should be suspected to have elevated cerebrospinal fluid pressure
8
PubMed Central. Number of Radiologic Abnormalities Associated with Idiopathic Intracranial Hypertension as a Predictor of the Presence of Pulsatile Tinnitus
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PubMed Central. Patulous Eustachian tube dysfunction following rapid weight loss associated with semaglutide use: A case report
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PubMed Central. Patulous Eustachian Tube Accompanied by Internal Carotid Artery Anomalies
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PubMed Central. Management of patulous Eustachian tube dysfunction following bariatric surgery: a case report
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PubMed Central. Middle Ear Myoclonus: Two Informative Cases and a Systematic Discussion of Myogenic Tinnitus
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PubMed Central. Pulsatile Tinnitus: Differential Diagnosis and Radiological Work-Up
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PubMed Central. Venous sinus stenting for the treatment of isolated pulsatile tinnitus: Results of a prospective trial
15
PubMed Central. Endovascular treatment of pulsatile tinnitus associated with venous sinus diverticulum: a scoping review
16
PubMed Central. Smartphone-Based Cognitive Behavioral Therapy and Customized Sound Therapy for Tinnitus: A Randomized Controlled Trial
17
Cochrane Database of Systematic Reviews. Sound therapy (masking) in the management of tinnitus in adults
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PubMed Central. Pathophysiological Insights and Multimodal Interventions in Chronic Tinnitus, Anxiety, and Sleep Disorders