What are the Causes and Effects of Loss of Consciousness?

Courtesy of Godoy Medical Forensics



There is a long list of causes, including:

  • Alcohol or drug intoxication/overdose
  • Seizures
  • Diabetes
  • Trauma
  • Infection
  • Psychogenic (i.e. panic attack)
  • Stroke
  • Dehydration
  • Heart arrhythmia


The medical term for transient loss of consciousness (passing out) is “syncope.”


LOC can occur without warning, or a person may have symptoms that allude to the cause.


Amnesia is an indicator of loss of consciousness, even if the person does not think that he or she lost consciousness. “I don’t think I passed out, but I don’t remember what happened.”


LOC is not required for a concussion to be diagnosed.



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