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Reviewed By:

Maxwell J. Nanes

Maxwell J. Nanes, DO (Emergency department)

Sanshiro Kato

Sanshiro Kato, MD (Emergency department)

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People with these symptoms also use Ubie's symptom checker to find possible causes

  • Temporary loss of consciousness

  • Felt "floaty" and almost in a trance after recovering from fainting / seizure

  • Passed out / blacked out after sitting in the same position for a long time

  • Can't see half of my usual visual field after I woke up from my seizure

  • Checking my blind spot when driving nearly made me faint or black out

  • Before the seizure happened there were sounds or whispers in my head

  • Fell unconscious but those around me said I was staring at something

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Content updated on Sep 6, 2022

About the symptom

A temporary loss of consciousness is known as fainting, sometimes known as passing out or syncope. An abrupt decrease in blood supply to the brain causes it to happen. A typical incident lasts a few seconds to minutes. The majority of fainting spells are harmless.

When to see a doctor

Seek professional care if you experience any of the following symptoms

  • Losing consciousness

Possible causes

  • Anemia

    Anemia is a disorder in which the body's tissues don't get enough oxygen due to insufficient healthy red blood cells. There are several types anemia with various causes, the most common being iron-deficiency anemia which is a result of insufficient iron. Iron is required to produce haemoglobin, a substance in the red blood cells which help carry oxygen.

  • Dissociative disorder

    Dissociative disorder is mental disorder that involve experiencing a disconnection and lack of continuity between thoughts, memories, surroundings, actions and identity. People with dissociative disorder escape reality in ways that are involuntary and unhealthy and cause problems with functioning in everyday life.

  • Neurally mediated syncope

    Neurally mediated syncope or vasovagal syncope is a sudden drop in heart rate and blood pressure resulting fainting. Common triggers include strain, stress, long periods of standing, heat exposure or sight of blood or something unpleasant.

Related serious diseases

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Have you currently regained consciousness after temporarily losing consciousness?

  • Have you lost consciousness due to being overwhelmed emotionally?

  • Did you feel lightheaded before losing consciousness?

  • Did you have any chest pain before losing consciousness?

  • Did you have palpitations before you lost consciousness?

Other Related Symptoms

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Reviewed By:

Maxwell J. Nanes

Maxwell J. Nanes, DO (Emergency department)

Sanshiro Kato

Sanshiro Kato, MD (Emergency department)

From our team of 50+ doctors

Just 3 minutes.
Developed by doctors.

Ubie is supervised by 50+ medical experts worldwide

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