Pulsatile Tinnitus: Causes, Symptoms, and When to Get Help

What makes pulsatile tinnitus different

Pulsatile tinnitus is characterized by a rhythmic sound that synchronizes with the heartbeat — often described as a whooshing, pounding, or thumping in one or both ears. Unlike the constant ringing of typical tinnitus, pulsatile tinnitus has a clear beat. This rhythmic quality is itself a diagnostic clue: it suggests the sound has a vascular or mechanical origin rather than being generated purely by the auditory nerve system.

Common causes

Because pulsatile tinnitus is linked to blood flow or physical movement near the ear, its causes differ significantly from standard tinnitus:

• Atherosclerosis: Hardening of the arteries near the ear causes turbulent blood flow that generates audible sound.
• High blood pressure (hypertension): Elevated blood pressure can make blood flow more forceful and audible.
• Idiopathic intracranial hypertension (IIH): Increased pressure of the cerebrospinal fluid around the brain — more common in overweight women of childbearing age. A distinctive low "whoosh" that worsens when lying down is characteristic.
• Arteriovenous malformations (AVMs) or fistulas: Abnormal connections between arteries and veins near the ear that create turbulence.
• Glomus tumors: Benign vascular tumors near the ear or at the base of the skull.
• Anemia: Low red blood cell count means the heart pumps faster and with more force to compensate, making blood flow sounds more audible.
• Thyroid disease: Both hypo- and hyperthyroidism can affect cardiovascular dynamics and contribute to pulsatile tinnitus.
• Venous hum: Turbulence in the jugular vein — often benign and found on the right side.

Objective vs. subjective pulsatile tinnitus

In some cases of pulsatile tinnitus, a doctor with a stethoscope placed near the ear or neck can actually hear the same sound — this is objective pulsatile tinnitus, and is almost always vascular in origin. Subjective pulsatile tinnitus, heard only by the patient, is more common and can still have an underlying vascular or intracranial cause.

When to see a doctor — urgently

Pulsatile tinnitus should always be evaluated by a doctor, but certain features require urgent attention:

• New onset of pulsatile tinnitus
• Pulsatile tinnitus in only one ear
• Accompanying vision changes, headaches, or visual obscurations (suggesting IIH)
• Any pulsatile tinnitus with hearing loss or dizziness
• Pulsatile tinnitus in a young person with no obvious cardiovascular risk factors

Diagnosis

Evaluation typically involves physical examination, blood pressure measurement, blood tests (thyroid function, CBC for anemia), and imaging — often an MRI/MRA to visualize blood vessels near the ear and brain, or a CT scan of the temporal bones. A Doppler ultrasound of the carotid arteries may also be requested.

Treatment

Unlike most tinnitus, pulsatile tinnitus often has a treatable underlying cause. Treating hypertension, correcting anemia, managing thyroid disease, or surgically addressing an AVM or glomus tumor may significantly reduce or eliminate the sound. IIH is treated with weight management, diuretics, or in severe cases, a procedure to reduce intracranial pressure.