Also called: Syncope
अनुवाद: हिन्दी
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Fainting is a temporary loss of consciousness. If you're about to faint, you'll feel dizzy, lightheaded, or nauseous. Your field of vision may "white out" or "black out." Your skin may be cold and clammy. You lose muscle control at the same time, and may fall down.

Fainting usually happens when your blood pressure drops suddenly, causing a decrease in blood flow to your brain. It is more common in older people. Some causes of fainting include

  • Heat or dehydration
  • Emotional distress
  • Standing up too quickly
  • Certain medicines
  • Drop in blood sugar
  • Heart problems

When someone faints, make sure that the airway is clear and check for breathing. The person should stay lying down for 10-15 minutes. Most people recover completely. Fainting is usually nothing to worry about, but it can sometimes be a sign of a serious problem. If you faint, it's important to see your health care provider and find out why it happened.

Symptoms of Fainting

The following features are indicative of Fainting:
  • lightheadedness
  • sweating
  • pale skin
  • blurred vision
  • nausea
  • vomiting
  • feeling warm
  • short episode of muscle twitching
References: 1

Common Causes of Fainting

The following are the most common causes of Fainting:
  • cough very hard
  • have a bowel movement
  • have been standing in one place for too long
  • urinate
  • emotional distress
  • fear
References: 2, 3

Other Causes of Fainting

The following are the less common causes of Fainting:
  • severe pain
  • certain medicines such that for depression, anxiety and high blood pressure
  • drug or alcohol use
  • hyperventilation
  • low blood sugar
  • seizures
  • sudden drop in blood pressure
  • standing up very suddenly from a lying position
References: 2, 3

Risk Factors of Fainting

The following factors may increase the likelihood of Fainting:
  • abnormal electrocardiographic findings
  • concomitant trauma
  • absence of symptoms of impending syncope
  • male gender

Prevention of Fainting

Yes, it may be possible to prevent Fainting. Prevention may be possible by doing the following:
  • if you feel the symptoms of fainting, lie down and lift your legs
References: 1

Occurrence of Fainting

Degree of Occurrence

The following are number of Fainting cases seen each year worldwide:
  • Very common > 10 Million cases

Common Age Group

Fainting most commonly occurs in the following age group:
  • Aged > 50 years

Common Gender

Fainting most commonly occurs in the following gender:
  • Not gender specific
References: 1, 2

Lab Tests and Procedures for Diagnosis of Fainting

The following lab tests and procedures are used to detect Fainting:
  • Blood test: To measure hemoglobin level to detect anemia or blood loss
  • Electrocardiogram: To check the electrical activity of the heart
  • Tilt table test: To draw out orthostatic syncope secondary to autonomic dysfunction
References: 1

Doctor for Diagnosis of Fainting

Patients should visit the following specialists if they have symptoms of Fainting:
  • Neurologist
  • Cardiologist

Complications of Fainting if Untreated

Yes, Fainting causes complications if it is not treated. Below is the list of complications and problems that may arise if Fainting is left untreated:
  • can be fatal
References: 4

Procedures for Treatment of Fainting

The following procedures are used to treat Fainting:
  • Insertion of a pacemaker: Activates the heart's muscle contractions by sending electrical impulse to the heart
  • Catheter ablation: To kill very small areas of tissue that cause abnormal electrical signals
  • Cardioversion: To restore the heart's normal rhythm
  • Implantable cardioverter defibrillator: Monitors the heart
References: 5

Self-care for Fainting

The following self-care actions or lifestyle changes may help in the treatment or management of Fainting:
  • Lie down or sit down: To lower the chance of fainting again
  • Place your head between your knees: Helpful in preventing fainting
References: 6

Patient Support for Treatment of Fainting

The following actions may help Fainting patients:
  • Coordinate with health care providers: Provides information and helps in coping with the disease
References: 5

Time for Treatment of Fainting

While time-period of treatment for each patient may vary, below is the typical time-period for Fainting to resolve if treated properly under an expert supervision:
  • Within 1 day
References: 1

Questions - Fainting

Demographic Information - Fainting

Following is the demographic information reported by website visitors for Fainting. Information below may include patient demographics as well as data for website visitors who might be researching on behalf of patients e.g. parents for small children. The data below may or may not be reflective of the complete patient population demographics for this medicine/health topic.
User gender
2 out of 2 users are male.
Survey Participants: 2
User age
The most common user is 21-30 years old.
< 210
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User reported disease
Users most commonly suffer from Insomnia.
Survey Participants: 2
User exercise frequency
Users most commonly exercise once a week.
Once a week1
Twice a week0
Five times a week0
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User smoking habit
2 out of 3 users do not smoke.
Do not smoke2
Survey Participants: 3
User alcohol consumption frequency
Users most commonly reported never consuming alcohol
One drink a day1
Two drinks a day0
More than two drinks a day0
Once a week0
Twice a week1
Once a month1
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User body weight
1 out of 4 users report being overweight.
Not overweight3
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User well-being
1 out of 2 users report having significant pain in the last 3 months.
Significant pain in the last 3 months1
No significant pain in the last 3 months1
Survey Participants: 2
User profession
The most common user profession is Accountant.
Survey Participants: 3


  1. Wikipedia Syncope (medicine) - Accessed: February 20, 2017.
  2. MedlinePlus Fainting - Accessed: February 20, 2017.
  3. Giorgio Costantino, Francesca Perego, Franca Dipaola, Marta Borella, Andrea Galli, Giulia Cantoni, Simonetta Dell’Orto, Simonetta Dassi, Nicola Filardo, Pier Giorgio Duca, Nicola Montano, Raffaello Fan, STePS Investigators Short- and Long-Term Prognosis of Syncope, Risk Factors, and Role of Hospital Admission - Accessed: February 20, 2017.
  4. Vinoth Sankar, Steven Close and Stephen J Leslie Evidence based evaluation of syncope of uncertain origin - Accessed: February 20, 2017.
  5. Heart Rhythm Society Treatment for Syncope - Accessed: February 20, 2017.
  6. MAYO CLINIC Fainting: First aid - Accessed: February 20, 2017.
  7. Source:

Last updated date

This page was last updated on 11/28/2017.
This page provides information for Fainting in English.

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