• Centers and Departments
• Back to Diseases and Conditions
• Arrhythmias
• Atrial Fibrillation
• Bradycardia or Low Heart Rate
• Brugada Syndrome
• Long QT Syndrome
• Palpitations
• Sudden Death or Cardiac Arrest
• Syncope or Fainting
  • Signs and Symptoms
  • Risk Factors
  • Causes
  • Diagnosis
  • Treatments
  • Physicians and Services
• Tachycardia or Fast Heart Rate
• Wolff-Parkinson-White Syndrome

Signs and Symptoms

The signs and symptoms of syncope include:

• Blacking out
  
• Falling for no apparent reason
  
• Dizziness
  
• Drowsiness
  
• Pale skin
  
• Grogginess
  
• Fainting, especially after a meal or after exercise
  
• Feeling unsteady while standing

Syncope is often preceded by other symptoms called premonitory symptoms, such as:

• Lightheadedness
  
• Nausea
  
• Feeling warm
  
• Cold, clammy sweat
  
• Palpitations