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Dizziness is the feeling of being lightheaded, woozy, or unbalanced. It affects the sensory organs, specifically the eyes and ears, so it can sometimes cause fainting. Dizziness isn’t a disease, but rather a symptom of various disorders.
Vertigo and disequilibrium may cause a feeling of dizziness, but those two terms describe different symptoms. Vertigo is characterized by a spinning sensation, like the room is moving. It may also feel like motion sickness or as if you’re leaning to one side. Disequilibrium is a loss of balance or equilibrium. True dizziness is the feeling of lightheadedness or nearly fainting.
Dizziness is common and its underlying cause usually isn’t serious. Occasional dizziness is not something to worry about. However, you should call your doctor immediately if you’re experiencing repeated episodes of dizziness for no apparent reason or for a prolonged period.
Common causes of dizziness include a migraine, medications, and alcohol. It can also be caused by a problem in the inner ear, where balance is regulated.
Dizziness is often a result of vertigo as well. The most common cause of vertigo and vertigo-related dizziness is benign positional vertigo (BPV). This causes short-term dizziness when someone changes positions quickly, such as sitting up in bed after lying down.
Dizziness and vertigo can also be triggered by Meniere’s disease. This causes fluid to build up in the ear with associated ear fullness, hearing loss, and tinnitus. Another possible cause for dizziness and vertigo is an acoustic neuroma. This is a noncancerous tumor that forms on the nerve that connects the inner ear to the brain.
Some other possible causes of dizziness include:
In rare cases, dizziness could be caused by multiple sclerosis, a stroke, a malignant tumor, or another brain disorder.
People experiencing dizziness may feel various sensations, including:
Sometimes, dizziness is accompanied by nausea, vomiting, or fainting. Seek emergency medical help if you have these symptoms for extended periods.
You should call your doctor if you continue to have repeated bouts of dizziness. You should also notify your doctor immediately if you experience sudden dizziness along with:
These symptoms could indicate a serious health problem, so it’s important to seek medical attention as soon as possible.
Your doctor can narrow down the cause of dizziness and any other symptoms by performing a physical examination. They’ll ask you questions about your dizziness, including:
Your doctor may also check your eyes and ears, do a neurological physical exam, observe your posture, and perform tests to check balance. Depending on the suspected cause, an imaging test such as a CT scan or MRI might be recommended.
In some cases, no cause for dizziness is determined.
Treatment for dizziness focuses on the underlying cause. In most cases, home remedies and medical treatments can control the cause of dizziness. For example:
Most cases of dizziness clear up on their own once the underlying cause is treated. In rare cases, dizziness can be a sign of a more serious health problem.
Dizziness may result in complications when it causes fainting or a loss of balance. This can be especially dangerous when a person is driving or operating heavy machinery. Use caution if you feel an episode of dizziness coming on. If you become dizzy, stop driving immediately or find a safe place to steady yourself until it passes.
Follow these tips if you have recurrent bouts of dizziness:
Always talk to your doctor if you’re concerned about the frequency or severity of your dizziness.
Written by: Amber Erickson Gabbey
Medically reviewed on: Apr 12, 2016: University of Illinois-Chicago, College of Medicine
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