Dizziness (patient information)
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What is Dizziness?
Dizziness is light-headedness, feeling like you might faint, being unsteady, loss of balance, or vertigo (a feeling that you or the room is spinning or moving).
Most causes of dizziness are not serious and either quickly get better on their own or are easily treated.
What are the symptoms of Dizziness?
What causes Dizziness?
Light-headedness happens when there is not enough blood getting to the brain. This can happen if there is a sudden drop in your blood pressure or you are dehydrated from vomiting, diarrhea, fever, or other causes. Many people, especially as they get older, experience light-headedness if they get up too quickly from a lying or seated position. Light-headedness often accompanies the flu, hypoglycemia, common cold, or allergies.
More serious conditions that can lead to light-headedness include heart problems (such as abnormal heart rhythm or heart attack), stroke, and severe drop in blood pressure (shock). If any of these serious disorders is present, you will usually have additional symptoms like chest pain, a feeling of a racing heart, loss of speech, change in vision, or other symptoms.
The most common causes of vertigo are benign positional vertigo and labyrinthitis. Benign positional vertigo is vertigo that happens when you change the position of your head. Labyrinthitis usually follows a cold or flu and is caused by a viral infection of the inner ear. Meniere's disease is another common inner ear problem. It causes vertigo, loss of balance, and ringing in the ears.
Much less commonly, vertigo or feeling unsteady is a sign of stroke, multiple sclerosis, seizures, a brain tumor, or a bleed in your brain. In such conditions, other symptoms usually accompany the vertigo or imbalance.
How do I know I have Dizziness?
Your doctor will perform a physical exam, focusing on your heart, head, ears, and nervous system, and ask questions such as:
- Does your dizziness feel like light-headedness, vertigo, or imbalance?
- Does your dizziness occur with a change in body position?
- What other symptoms occur when you feel dizzy?
- When did your dizziness begin?
- Are you always dizzy or does the dizziness come and go?
- How long does the dizziness last (minutes, hours)?
- Did another illness develop before or after the dizziness began? How much later?
- Have you had any nausea and vomiting?
- Do you have a significant amount of stress or anxiety?
Diagnostic tests that may be performed include:
- Blood pressure measurements and tests
- ECG
- Hearing tests
- Neurological tests
- Balance testing (ENG) may be required
- MRI
When to seek urgent medical care
Prevention
Treatment options
Where to find medical care for Dizziness
Directions to Hospitals Treating Dizziness