Introduction

Dizziness and fainting are symptoms. They may indicate that a disorder is present. Both dizziness and fainting are common. They sometimes occur together and may have similar causes. But most people who have dizziness do not faint, and many people who faint do not have dizziness.

Dizziness makes daily activities difficult and can worsen a person's quality of life. But dizziness rarely indicates a life-threatening disorder. Fainting is less common than dizziness and tends to interfere less with daily activities. But it can result in injuries and may indicate a serious or even life-threatening disorder.