The main causes of vertigo attacks

Vertigo attacks happen when something disrupts your body's balance system. Your brain uses three sources of information to keep you steady: your inner ear, your eyes, and your body's sense of where it is in space. When these signals get mixed up or contradictory, your brain interprets the mismatch as spinning or movement, even though you are standing still.

The most common cause is benign paroxysmal positional vertigo (BPPV), which accounts for about half of all vertigo cases. BPPV occurs when tiny calcium carbonate crystals in your inner ear become loose and move into the wrong part of the balance canal. When you move your head in certain directions—tilting back, turning over in bed, or looking up—these crystals shift and trigger a spinning sensation that usually lasts seconds to minutes.

The second most common cause is vestibular neuritis, an inflammation of the nerve that carries balance signals from your inner ear to your brain. This typically follows a viral infection and can cause severe spinning that lasts days or weeks. A related condition, labyrinthitis, involves inflammation of the inner ear itself rather than just the nerve.

Key Takeaways

  • BPPV, caused by loose crystals in your inner ear, is the most common cause of vertigo and usually triggers brief spinning episodes when you move your head.
  • Vestibular neuritis and labyrinthitis are viral infections that inflame the balance nerve or inner ear, causing longer episodes of severe dizziness.
  • Meniere's disease combines vertigo with hearing loss and ear fullness, and episodes can last hours; it is more common in middle-aged adults.
  • Head injuries, migraines, and certain medications can all trigger vertigo attacks in some people.
  • A doctor can usually identify the cause by asking about your symptoms and how your head moves affect them.

Meniere's disease and fluid buildup in the ear

Meniere's disease causes vertigo attacks that last 20 minutes to several hours, often accompanied by hearing loss, ringing in the ear, and a feeling of fullness or pressure in the affected ear. The condition involves a buildup of fluid in the inner ear, though doctors still do not fully understand why this happens in some people and not others.

Meniere's disease typically affects one ear and usually appears in adults between 40 and 60 years old. Attacks can be unpredictable—some people have one episode and never another, while others experience clusters of attacks over weeks or months followed by long quiet periods. The hearing loss in early Meniere's is often reversible, but repeated attacks can cause permanent damage over time.

Head injuries and post-concussion vertigo

A blow to the head can damage the inner ear or the nerve pathways that carry balance signals to your brain. This type of vertigo, called post-traumatic vertigo, can begin immediately after the injury or develop days later. The severity depends on how hard the impact was and which part of the balance system was damaged.

Even a mild concussion—one that does not cause loss of consciousness—can trigger vertigo that lasts weeks or months. Some people develop BPPV as a result of head trauma, since the impact can jar those calcium crystals loose. If you have vertigo after any head injury, even a minor one, tell your doctor about the incident so they can check for inner ear damage.

Migraines and vertigo

Vertigo can be part of a migraine attack, either during the headache itself or in the hours before it starts. This type of vertigo, sometimes called vestibular migraine, may occur with or without the typical throbbing head pain. Some people experience only dizziness and spinning without any headache at all.

Vestibular migraines are more common than many doctors once thought, and they can be mistaken for other balance disorders. If your vertigo episodes happen alongside migraines or seem to follow a pattern related to your menstrual cycle or certain foods, mention this to your doctor. The treatment approach may be different from other causes of vertigo.

Medications and other medical conditions

Certain medications can trigger vertigo as a side effect, particularly some antibiotics (especially aminoglycosides), blood pressure drugs, and seizure medications. If your vertigo started shortly after you began taking a new medication, your doctor may be able to switch you to an alternative.

Vertigo can also result from other medical conditions: high blood pressure, low blood sugar, anemia, thyroid problems, and heart rhythm irregularities can all cause dizziness that feels like spinning. Stroke and multiple sclerosis can damage the parts of the brain that control balance, though these usually cause other symptoms as well. Anxiety and panic attacks sometimes produce dizziness that mimics vertigo, though the spinning sensation is typically less intense.

How doctors figure out what is causing your vertigo

Your doctor will start by asking detailed questions: When did the spinning start? Does it happen only when you move your head in certain directions, or does it come on randomly? How long do episodes last—seconds, minutes, or hours? Do you have hearing loss, ear ringing, or ear fullness? Have you had a recent illness or head injury?

The doctor may perform a simple test called the Dix-Hallpike maneuver, where they move your head in a specific way while watching your eyes. If you have BPPV, your eyes will move in a particular pattern that confirms the diagnosis. They may also check your blood pressure, test your hearing, or order an MRI if they suspect a more serious cause like stroke or a brain tumor.

In many cases, the pattern of your symptoms is enough to identify the cause. BPPV is suspected when brief spinning happens with head movement. Vestibular neuritis is likely if you had a viral illness followed by severe spinning that gradually improves. Meniere's disease is suspected when vertigo comes with hearing loss and ear fullness. Your doctor may refer you to an ear, nose, and throat specialist (ENT) or a neurologist if the cause is unclear.

Frequently Asked Questions

Can stress or anxiety cause vertigo attacks?

Anxiety and panic attacks can cause dizziness and a spinning sensation, though it is usually less intense than vertigo from inner ear problems. If your spinning episodes happen during stressful situations and improve when you calm down, anxiety may be a factor. However, many people with vertigo also develop anxiety about future attacks, so it is worth having a doctor check for a physical cause first.

Is vertigo a sign of a stroke?

Vertigo alone is rarely a sign of stroke, since BPPV and vestibular neuritis are far more common. However, stroke can cause vertigo along with other symptoms like facial drooping, arm weakness, slurred speech, or difficulty walking. If you have vertigo plus any of these other signs, call emergency services immediately.

Why do vertigo attacks happen suddenly without warning?

BPPV and vestibular neuritis can strike suddenly because they involve physical changes in your inner ear that happen without obvious warning. BPPV crystals can shift unexpectedly with head movement. Viral infections that cause vestibular neuritis develop quickly. Meniere's disease attacks are often unpredictable, though some people notice patterns related to salt intake, stress, or sleep.

Can you have vertigo without feeling like the room is spinning?

Yes. Some people describe vertigo as a sensation of tilting, swaying, or moving even though they know they are still. Others feel like they are falling or being pulled to one side. The key feature is that your brain is receiving conflicting balance signals, not necessarily that you feel the classic spinning sensation.

Does vertigo go away on its own?

It depends on the cause. BPPV episodes usually stop within seconds to minutes without treatment, though the condition can recur. Vestibular neuritis typically improves over weeks to months as your brain adapts. Meniere's disease attacks may stop on their own but can return unpredictably. Your doctor can recommend treatments to speed recovery and reduce how often attacks happen.