Faint
Free Symptom Checker
with Physician-supervised AI
Reviewed By:
Maxwell J. Nanes, DO (Emergency Medicine)
Dr Nanes received a doctorate from the Chicago College of Osteopathic Medicine and went on to complete a residency in emergency medicine at the Medical College of Wisconsin. There he trained at Froedtert Hospital and Children's Hospital of Wisconsin in the practice of adult and pediatric emergency medicine. He was a chief resident and received numerous awards for teaching excellence during his time there. | | After residency he took a job at a community hospital where he and his colleagues worked through the toughest days of the COVID-19 pandemic. |
Yoshinori Abe, MD (Internal Medicine)
Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.
Content updated on Apr 4, 2024
Following the Medical Content Editorial Policy
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Try one of these related symptoms.
Blacking out
Feel anxiety suddenly
Felt nauseous then fainted
Sweating followed by fainting
Fainting followed by a headache
Fainting when walking
Chest pain with fainting
Feeling faint before losing consciousness
Confused or drowsy for a while after recovering consciousness
Fainting when tired
Fainted but retained the ability to recall fainting
Feeling skin warmth or "hot flashes" before fainting
How Ubie Can Help You
With a free 3-min Faint quiz, powered by Ubie's AI and doctors, find possible causes of your symptoms.
This questionnaire is customized to your situation and symptoms, including the following personal information:
Biological Sex - helps us provide relevant suggestions for male vs. female conditions.
Age - adjusts our guidance based on any age-related health factors.
History - considers past illnesses, surgeries, family history, and lifestyle choices.
Your symptoms
Our AI
Your report
Your personal report will tell you
✔ When to see a doctor
✔︎ What causes your symptoms
✔︎ Treatment information etc.
People with similar 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
- Before I fainted I saw something strange or flickering in my vision
- Woke up from my fainting but I couldn't remember what just happened
- Strong taste in the mouth before fainting / losing consciousness
- Hands and legs were unusually bent out when I lost consciousness
- Felt like my surroundings was getting warmer before I passed out
- Fingers felt like they were touching something befor I fainted
- Seizures triggered by contrasting light and dark patterns
- Recovered consciousness but having a terrible headache
See full list
Just 3 minutes.
Developed by doctors.
Try Free Symptom QuizAbout the Symptom
A temporary loss of consciousness is known as fainting, sometimes called passing out or syncope. It occurs due to a sudden decrease in blood supply to the brain. A typical episode lasts a few seconds to minutes. Most fainting spells are harmless.
When to See a Doctor
Seek professional care if you experience any of the following symptoms
- Losing consciousness
Possible Causes
Generally, Faint can be related to:
- Vasovagal Syncope
Neurally mediated syncope, also known as vasovagal syncope, is a sudden drop in heart rate and blood pressure that results in fainting. Common triggers include strain, stress, long periods of standing, exposure to heat, or emotionally upsetting situations (such as sight of blood).
- Long QT Syndrome
QT prolongation syndrome is a heart signaling disorder that can cause fast, chaotic heartbeats (arrhythmias). It can be present from birth or develop later in life due to certain medical conditions, specific drugs, or mineral imbalances.
- Breath Holding Spells
A condition sometimes seen in young children. Spells most commonly occur around one year of age with a range of six months to four years. Up to 15 percent of cases may have an initial episode below the age of six months. The child may stop breathing for up to 1 minute, causing them to lose consciousness and tone. Although alarming to parents, this condition is common and can happen in healthy children, who will grow out of it as they age. Triggers for spells include frustration, pain, or fear.
- Porphyria
Related Serious Diseases
Sometimes, Faint may be related to these serious diseases:
- Asphyxiation
Suffocation (asphyxiation) occurs when the body doesn't receive enough oxygen. The most common causes are allergic reactions (throat closes up from swelling), drowning and foreign objects caught in the airway. Without quick intervention, it can result in loss of consciousness, brain damage, or death.
- Ventricular Fibrillation
- Eclampsia
Acute Encephalopathy
- Vasovagal Reflex
- Carbon Monoxide Poisoning
Doctor's Diagnostic Questions
Your doctor may ask these questions to check for this symptom:
- Have you temporarily lost consciousness?
- When did you first experience getting blacking out?
- Have you ever regained consciousness after blacking out briefly?
- Have you ever passed out from overwhelming emotions?
- Did you feel dizzy before passing out?
Just 3 minutes.
Developed by doctors.
Try Free Symptom QuizFind Similar Symptoms
Similar symptoms or complaints
Reviewed By:
Maxwell J. Nanes, DO (Emergency Medicine)
Dr Nanes received a doctorate from the Chicago College of Osteopathic Medicine and went on to complete a residency in emergency medicine at the Medical College of Wisconsin. There he trained at Froedtert Hospital and Children's Hospital of Wisconsin in the practice of adult and pediatric emergency medicine. He was a chief resident and received numerous awards for teaching excellence during his time there. | | After residency he took a job at a community hospital where he and his colleagues worked through the toughest days of the COVID-19 pandemic. |
Yoshinori Abe, MD (Internal Medicine)
Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.
What People Say about Ubie?
Male, 30s
I got more answers in one minute through your site than I did in three hours with Google.
(Sep 29, 2024)
Male, 20s
My experience was great. I was worried, but the symptom checker helped me narrow down what it might be. I feel a little relieved compared to when I first started, and it gives me a starting point for what my symptoms could mean.
(Sep 27, 2024)
Male, 50s
The questions asked and possible causes seemed spot on, putting me at ease for a next-step solution.
(Sep 26, 2024)
Female, 40s
I was actually very impressed with the results it provided because, although I didn’t mention it during the questionnaire because I thought it was unrelated, it suggested I may have something I’ve actually been diagnosed with in the past.
(Sep 25, 2024)
Just 3 minutes.
Developed by doctors.
Try Free Symptom QuizUbie is supervised by 50+ medical experts worldwide
Our symptom checker AI is continuously refined with input from experienced physicians, empowering them to make more accurate diagnoses.
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Which is the best Symptom Checker?
Ubie’s symptom checker demonstrated a Top-10 hit accuracy of 71.6%, surpassing the performance of several leading symptom checkers in the market, which averaged around 60% accuracy in similar assessments.
Link to full study:
https://www.medrxiv.org/content/10.1101/2024.08.29.24312810v1