Causes of Fainting

Simple Causes: There are a number of simple and everyday causes of a faint.

Disease Causes: Fainting can indicate a more serious underlying disease. Some of the diseases where fainting or feeling faint may be a symptom include disorders of blood pressure, heart disorders, metabolic diseases, and other causes.

Low Blood Pressure: One of the more common causes of fainting episodes is low blood pressure.

Metabolic Causes: Various issues with the body’s metabolism can cause fainting:

Brain Disorders: Various diseases of the brain can trigger a faint or unconsciousness (i.e. syncope):

Neck Disorders: Disorders affecting the circulation in the neck, or the spinal cord, may sometimes cause fainting:

  • Cervical Spondylosis. A disorder of the vertebrae in the neck, which can cause faintness, especially if the feeling of faintness occurs when moving the neck or head.
  • Carotid sinus hypersensitivity

Heart or Circulatory Disorders: Various disorders of the heart or circulatory system can cause faintness:

Other Causes: Various other causes of fainting or faint-like episodes include:

Similar Symptoms: See also causes of symptoms similar to fainting:

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Note: This site is for informational purposes only and is not medical advice. See your doctor or other qualified medical professional for all your medical needs.