Vertigo is usually caused by a problem in your inner ear or brain that disrupts your balance system

Vertigo happens when your brain receives conflicting signals about your body's position and movement. Your inner ear contains fluid and tiny sensory organs that tell your brain which way is up and how fast you are moving. When this system malfunctions — or when your brain misinterprets the signals — you feel like you or the room around you is spinning. This sensation is not a disease itself, but a symptom that something in your balance system needs attention.

The spinning feeling can range from mild and brief to severe and disabling. Some people experience vertigo for a few seconds; others deal with it for hours or days. The intensity often depends on what is causing it and how your body responds to the problem.

Key Takeaways

  • Vertigo develops when your inner ear, eyes, or brain send mixed signals about balance and position, most commonly from inner ear disorders like BPPV or vestibular neuritis.
  • Common triggers include head movements, sudden position changes, infections, head injuries, and certain medications that affect the inner ear.
  • A doctor can identify the cause through physical tests like the Dix-Hallpike maneuver, imaging scans, or hearing tests depending on your symptoms.
  • Most cases of vertigo improve on their own or with treatment, though some underlying conditions require ongoing management.
  • Keeping a record of when vertigo occurs, what triggers it, and how long it lasts helps your doctor narrow down the cause.

Inner ear disorders that cause spinning sensations

Benign paroxysmal positional vertigo (BPPV) is the most common cause of vertigo. It happens when tiny calcium crystals in your inner ear become loose and move into the wrong part of the balance system. When you move your head — especially tilting it backward or rolling over in bed — these crystals shift and trigger a brief spinning sensation. BPPV typically lasts seconds to minutes and often goes away on its own, though it can return.

Vestibular neuritis occurs when the nerve that carries balance signals from your inner ear to your brain becomes inflamed, usually after a viral infection. This causes sudden, severe vertigo that can last days or weeks. You may also feel nauseous or have trouble focusing your eyes.

Meniere's disease develops when fluid builds up abnormally inside your inner ear. It causes episodes of vertigo lasting 20 minutes to several hours, often paired with hearing loss, ringing in the ear, and a feeling of pressure or fullness. The cause is not fully understood, but it tends to run in families.

Head injuries, infections, and other medical triggers

A blow to the head can damage the inner ear or the parts of your brain that control balance, causing vertigo that may appear immediately or develop over days. Head injuries sometimes cause vertigo that persists for weeks or months, a condition called post-concussion syndrome.

Infections can trigger vertigo in several ways. A middle ear infection can spread to the inner ear. A viral infection of the inner ear itself, called labyrinthitis, causes vertigo along with hearing loss and ear pain. Some systemic infections, including COVID-19, have been linked to sudden vertigo in some people.

Certain medications — particularly some antibiotics, blood pressure drugs, and cancer treatments — can damage the inner ear and cause vertigo as a side effect. If vertigo starts shortly after you begin a new medication, tell your doctor; they may adjust your dose or switch you to a different drug.

Neurological conditions that affect balance

Vertigo can signal a problem in your brain rather than your inner ear. Stroke or transient ischemic attack (TIA) — a temporary blockage of blood flow to the brain — can cause sudden vertigo, often with other symptoms like facial drooping, arm weakness, or slurred speech. These are medical emergencies requiring immediate hospital care.

Multiple sclerosis damages the nerve fibers that carry balance signals, sometimes causing vertigo as an early symptom. Vestibular migraine occurs when a migraine headache affects the balance centers in your brain, triggering vertigo that may or may not be accompanied by a headache. Some people experience vertigo as their only migraine symptom.

Cerebellar ataxia and other degenerative brain conditions can gradually damage the parts of your brain responsible for balance, leading to chronic vertigo and unsteadiness. These conditions typically develop slowly over months or years.

How doctors identify what is causing your vertigo

Your doctor will start by asking detailed questions: When did the vertigo start? Does the room spin or do you feel like you are moving? What movements trigger it? How long does each episode last? Do you have hearing loss, tinnitus (ringing in the ear), or nausea? These answers narrow down the possibilities significantly.

The Dix-Hallpike maneuver is a simple physical test your doctor performs in the office. You sit on an exam table, turn your head to one side, then lie back quickly with your head hanging off the edge. If you have BPPV, this movement triggers vertigo and a specific eye movement pattern that confirms the diagnosis. Other tests include the Romberg test (standing with eyes closed) and gait assessment (watching how you walk).

If your doctor suspects an inner ear problem, you may have videonystagmography (VNG), which tracks your eye movements using infrared cameras, or caloric testing, which uses warm and cool air to stimulate your inner ear and measure your response. Hearing tests can reveal whether your inner ear function is affected.

For suspected brain-related causes, your doctor may order MRI or CT imaging to look for stroke, tumors, or other structural problems. Blood tests can rule out infections or other systemic conditions.

What happens after your doctor finds the cause

Treatment depends entirely on what is causing your vertigo. BPPV often responds to specific head-positioning exercises called canalith repositioning procedures, which your doctor or a physical therapist can teach you. These exercises move the loose crystals back to where they belong, and many people feel better after one or two sessions.

Vestibular neuritis usually improves on its own over weeks to months, though your doctor may prescribe medications to reduce nausea and dizziness in the short term. Vestibular rehabilitation therapy — exercises that retrain your balance system — can speed recovery and prevent vertigo from returning.

Meniere's disease is managed with dietary changes (reducing salt and caffeine), diuretic medications, or in some cases, injections or surgery if symptoms are severe and do not respond to other treatments. Migraine-related vertigo often improves with migraine prevention medications.

If your vertigo is caused by stroke, infection, or another serious condition, treatment focuses on the underlying problem. Your doctor will refer you to a specialist — a neurologist, otolaryngologist (ear, nose, and throat doctor), or other expert — depending on the diagnosis.

Tracking your symptoms to help your doctor

Before your appointment, write down when vertigo episodes occur and what you were doing when they started. Note how long each episode lasts, what makes it better or worse, and any other symptoms like hearing changes, nausea, or headache. This record is far more useful to your doctor than trying to remember details weeks later.

If vertigo is triggered by specific movements — rolling over in bed, looking up, turning your head — practice those movements safely and note exactly what happens. If it occurs randomly, record the time of day and what you were doing beforehand. Over time, patterns often emerge that point to the cause.

Bring this information to your appointment along with a list of all medications and supplements you take, any recent illnesses or head injuries, and whether vertigo runs in your family. The more specific your account, the faster your doctor can identify the problem.

Frequently Asked Questions

Can you get vertigo from anxiety or stress?

Anxiety can trigger dizziness and a sensation of imbalance, but true vertigo — the spinning sensation — is not caused by anxiety alone. However, anxiety can make existing vertigo worse or make you more aware of mild symptoms. If your doctor has ruled out physical causes, they may discuss anxiety management as part of your overall care.

Is vertigo always a sign of something serious?

Most vertigo is caused by BPPV or vestibular neuritis, both of which are not dangerous, though they are uncomfortable. However, vertigo can occasionally signal stroke, brain tumor, or another serious condition, especially if it comes with weakness, numbness, vision changes, or difficulty speaking. Seek immediate medical attention if vertigo is accompanied by these warning signs.

Can you develop vertigo gradually or does it always come on suddenly?

Most inner ear vertigo comes on suddenly, but some conditions develop gradually. Meniere's disease often starts with mild episodes that worsen over time. Neurological conditions like multiple sclerosis or cerebellar ataxia can cause slowly worsening balance problems. Your doctor will ask about the timeline to help determine the cause.

What should I do if vertigo happens while I am driving?

Pull over immediately to a safe location and wait for the spinning to stop before continuing. If you have frequent vertigo episodes, talk to your doctor about whether it is safe for you to drive. Some people need to avoid driving until their condition is treated and controlled.

Can the same cause of vertigo happen again?

Yes. BPPV recurs in about 50 percent of people within five years. Vestibular neuritis and labyrinthitis typically happen once, though other viral infections could cause similar symptoms. Meniere's disease is chronic and episodes can recur throughout life. Your doctor will discuss the likelihood of recurrence based on your specific diagnosis.